Fabula
S1E17 · The Wall of Lies

Polo seizes the TARDIS under Tegana’s influence

Marco Polo, now fully manipulated by Tegana’s lies, seizes the TARDIS after the Doctor emerges, believing he has hidden a key inside. Tegana wrests the key from the Doctor, reinforcing Polo’s distrust, while the Doctor warns that inserting the key will destroy the ship—a warning Polo ignores. Polo invokes Kublai Khan’s authority to imprison the Doctor, Ian, Barbara, and Susan, declaring any resistance punishable by death. The Doctor’s defiance and Tegana’s smug triumph solidify the travelers’ helplessness, forcing them into a desperate struggle to prove Tegana’s treachery before Polo’s loyalty to the Khan becomes irreversible. The scene escalates the stakes by removing the TARDIS as an escape option, leaving the companions trapped in a hostile environment where their survival depends on exposing Tegana’s conspiracy.

Plot Beats

The narrative micro-steps within this event

1

The Doctor warns that using the key will destroy the TARDIS, which requires knowledge, but Polo ignores the warning. Polo invokes the authority of Kublai Khan, seizes the TARDIS, and orders the imprisonment of the Doctor, Ian, Barbara, and Susan, sealing their fate.

defiance to defeat

Who Was There

Characters present in this moment

7
Marco Polo
primary

Conflict-ridden initially, shifting to smug authoritarianism as he solidifies his control over the situation, masking deeper anxiety about the caravan’s instability.

Marco Polo, initially conflicted but ultimately swayed by Tegana’s lies, seizes the TARDIS key and invokes Kublai Khan’s authority to imprison the Doctor and his companions. He transitions from reluctant skepticism to authoritarian resolve, declaring resistance punishable by death. His internal monologue reveals his growing frustration with the caravan’s disruptions and his strategic isolation of Ping-Cho to maintain control.

Goals in this moment
  • Secure the TARDIS to prevent further 'trouble' in the caravan, as Tegana has convinced him it is a threat.
  • Maintain his authority and loyalty to Kublai Khan by demonstrating decisive action, even if it means imprisoning the Doctor and his companions.
Active beliefs
  • Tegana’s accusations about the Doctor hiding a key are true, and the Doctor is a deceptive threat to the caravan’s safety.
  • His authority as Kublai Khan’s envoy justifies extreme measures, including imprisonment and threats of death, to restore order.
Character traits
Manipulable Authoritative Strategic Conflict-Avoidant (initially) Resentful (of disruptions) Loyal (to Kublai Khan)
Follow Marco Polo's journey

Smug and triumphant, relishing his success in turning Polo against the Doctor and securing the TARDIS for Noghai’s faction. His demeanor is one of cold confidence, knowing his plan is unfolding as intended.

Tegana, the master manipulator, falsely accuses the Doctor of hiding a duplicate key and physically wrenches the key from the Doctor’s grasp. He gloats over Polo’s growing distrust and solidifies the Doctor’s imprisonment, reinforcing his role as the architect of the travelers’ downfall. His actions are calculated, ruthless, and designed to advance Noghai’s conspiracy.

Goals in this moment
  • Convince Polo that the Doctor is a threat and must be imprisoned, thereby seizing the TARDIS for Noghai’s use.
  • Eliminate the Doctor’s ability to escape or interfere with Noghai’s plans by ensuring his imprisonment.
Active beliefs
  • The Doctor and his companions are obstacles to Noghai’s rise, and their imprisonment is necessary for the conspiracy to succeed.
  • Polo is easily manipulated, and his loyalty to Kublai Khan can be exploited to justify extreme actions.
Character traits
Deceptive Ruthless Manipulative Triumphant Calculating
Follow Tegana's journey

Defiant and frustrated, but also deeply protective of the TARDIS. His contempt for Polo’s ignorance and authoritarianism is palpable, though his physical helplessness in the moment underscores the desperation of their situation.

The Doctor emerges from the TARDIS, refusing to hand over the key and warning Polo that inserting it will destroy the ship. He is physically overpowered by Tegana, who wrenches the key from his grasp, and subsequently imprisoned alongside his companions. His defiance is both verbal and symbolic, as he refuses to cooperate even in the face of threats.

Goals in this moment
  • Prevent Polo from damaging the TARDIS by inserting the key, as he knows it will destroy the ship.
  • Protect his companions from harm, though he is ultimately unable to stop their imprisonment.
Active beliefs
  • Polo is being manipulated by Tegana and lacks the knowledge to operate the TARDIS safely.
  • The TARDIS is their only means of escape, and its destruction would strand them permanently in this hostile environment.
Character traits
Defiant Protective (of the TARDIS) Scientific (emphasizing knowledge over brute force) Contemptuous (of Polo’s ignorance)
Follow The First …'s journey
Supporting 3

Helpless and frustrated, having already been taken into custody. Her emotional state is one of quiet determination, as she recognizes the need to find a way to expose Tegana’s lies and secure their release.

Barbara is already captured by Polo’s guards and imprisoned before this event fully unfolds. Like Susan, she does not speak in this segment, but her absence underscores the travelers’ collective vulnerability. Her earlier role as a history teacher and her protective instincts toward her students (Ian and Susan) add emotional depth to her imprisonment.

Goals in this moment
  • Find evidence to prove Tegana’s deceit and secure her and her companions’ release.
  • Protect Ian and Susan from harm, though she is physically unable to do so as she is imprisoned.
Active beliefs
  • Tegana is the true threat, and his manipulations are leading to their imprisonment.
  • Polo is being deceived, but there is no way to prove it in the moment.
Character traits
Helpless (implied by her capture) Protective (of her companions) Resilient (despite her situation)
Follow Barbara Wright's journey

Frustrated and helpless, recognizing that Polo’s distrust has reached a breaking point and that reasoning is no longer an option. His emotional state is one of quiet desperation as he anticipates imprisonment.

Ian Chesterton, though physically present and attempting to reason with Polo, is ultimately powerless to stop the seizure of the TARDIS. His frustration is palpable as he watches Polo’s guards drag Barbara and Susan away, and he is later imprisoned alongside the Doctor. His dialogue is minimal but reveals his growing resignation to their dire situation.

Goals in this moment
  • Convince Polo to wait and observe Tegana’s deceit, but ultimately fails as Polo’s decision becomes irreversible.
  • Protect Barbara and Susan from harm, though he is unable to intervene as Polo’s guards act.
Active beliefs
  • Tegana is manipulating Polo, and the Doctor’s warnings about the TARDIS key are genuine.
  • Polo’s loyalty to Kublai Khan is being exploited by Tegana, but there is no way to prove it in the moment.
Character traits
Frustrated Protective Logical (but ineffective in this context) Resigned
Follow Ian Chesterton's journey
Susan Foreman
secondary

Frightened and helpless, having already been taken into custody by Polo’s guards. Her emotional state is one of quiet despair, as she is separated from the Doctor and her friends with no means of escape.

Susan is already captured by Polo’s guards and imprisoned before this event fully unfolds. Though she does not speak in this segment, her absence and the Doctor’s protective defiance highlight her vulnerability. Her earlier bond with Ping-Cho and her role as the Doctor’s granddaughter add emotional weight to her imprisonment.

Goals in this moment
  • Stay close to the Doctor and companions for protection, though she is physically unable to do so as she is already imprisoned.
  • Avoid drawing further attention to herself, as she recognizes the danger of Polo’s growing hostility.
Active beliefs
  • Tegana is a threat, and his manipulations are leading to their imprisonment.
  • The TARDIS is their only hope of escape, and its seizure by Polo is a catastrophic setback.
Character traits
Vulnerable Loyal (to the Doctor and companions) Frightened (implied by her capture)
Follow Susan Foreman's journey
Ping-Cho

Ping-Cho is mentioned indirectly by Polo in his internal monologue, where he notes her resentment toward him and his efforts …

Objects Involved

Significant items in this scene

2
TARDIS (Time and Relative Dimension in Space)

The TARDIS serves as the central prize and point of contention in this event. The Doctor emerges from it, only to have Tegana falsely accuse him of hiding a duplicate key inside. Polo, manipulated by Tegana, seizes the TARDIS key and threatens to insert it, which the Doctor warns will destroy the ship. The TARDIS symbolizes the travelers’ only means of escape, and its seizure by Polo marks a turning point in the story, stripping them of their autonomy and trapping them in a hostile environment. The Doctor’s defiance and warnings highlight the TARDIS’s fragility and the high stakes of its loss.

Before: Functional and operational, with the Doctor having just …
After: Seized by Polo’s authority, with the key wrested …
Before: Functional and operational, with the Doctor having just emerged from it. The key is in the Doctor’s possession, and the TARDIS is positioned in the Sinju Way Station courtyard, exposed and vulnerable.
After: Seized by Polo’s authority, with the key wrested from the Doctor. The TARDIS is now under guard, and the Doctor and his companions are imprisoned, rendering the ship inaccessible for escape. The Doctor’s warnings about its destruction go unheeded, leaving it in a precarious state.
TARDIS Access Key (Marco Polo's Journal)

The TARDIS key is the symbolic and functional linchpin of this event. Tegana falsely accuses the Doctor of hiding a duplicate key inside the TARDIS, and when the Doctor emerges, Tegana violently wrenches the key from his grasp. Polo, now fully manipulated, demands the key and threatens to insert it into the TARDIS lock, which the Doctor warns will destroy the ship. The key represents both control and vulnerability: control because it grants access to the TARDIS, and vulnerability because its misuse could lead to catastrophe. Its seizure by Polo and Tegana marks the travelers’ loss of agency and the escalation of their peril.

Before: In the Doctor’s possession, having just been used …
After: Wrenched from the Doctor’s grasp by Tegana and …
Before: In the Doctor’s possession, having just been used to exit the TARDIS. It is the only known key to the ship, and its security is critical to the travelers’ ability to escape.
After: Wrenched from the Doctor’s grasp by Tegana and handed to Polo. It is now in Polo’s possession, symbolizing his authority over the TARDIS and the travelers’ imprisonment. The key’s status is precarious, as Polo threatens to use it despite the Doctor’s warnings.

Location Details

Places and their significance in this event

2
Isolation Tent in Sinju Way Station Courtyard (Polo's Prison)

The separate tent for the Doctor and his companions is mentioned in Polo’s internal monologue as a strategic move to isolate them from Ping-Cho and prevent further distrust. Though the actual imprisonment occurs in the courtyard, the tent is where the travelers will be confined afterward, symbolizing their loss of freedom and autonomy. The tent’s separation from the rest of the caravan underscores Polo’s desire to control information and limit the travelers’ ability to influence others, such as Ping-Cho. It is a physical manifestation of their imprisonment and the caravan’s growing hostility toward them.

Atmosphere Dim, stuffy, and claustrophobic, reflecting the travelers’ helplessness. The thin fabric of the tent allows …
Function Prison and containment zone, where the Doctor and his companions are held against their will. …
Symbolism Represents the travelers’ loss of agency and the caravan’s growing paranoia. The tent’s separation from …
Access Guarded by Polo’s men, with no means of escape. The tent is deliberately placed to …
Dimly lit, with thin fabric walls that allow sounds from the courtyard to filter in. Stuffy and confined, amplifying the travelers’ sense of helplessness. Guards stationed outside the entrance, ensuring no one enters or exits without permission.
Sinju Way Station Courtyard

The Sinju Way Station courtyard serves as the battleground for this climactic confrontation. It is an open, dust-swept space where the TARDIS sits exposed, making it vulnerable to seizure. The courtyard’s layout allows for the assembly of Polo’s guards, who quickly surround the Doctor and his companions, while also providing a stage for Polo’s authoritative declaration of imprisonment. The space is charged with tension, as it is here that the travelers’ fate is sealed and their only means of escape is stripped away. The courtyard’s neutrality is shattered, transforming it from a way station into a site of oppression.

Atmosphere Tense and oppressive, with a sense of impending doom. The dust-swept courtyard amplifies the feeling …
Function Battleground and site of confrontation, where Polo’s authority is asserted and the travelers’ imprisonment is …
Symbolism Represents the collapse of trust and the imposition of systemic power. The courtyard, once a …
Access Heavily guarded by Polo’s men, with no escape routes available. The TARDIS is surrounded, and …
Dust-swept and open, providing no cover for the travelers. Surrounded by Polo’s guards, who move swiftly to enforce his orders. The TARDIS sits exposed in the center, a focal point for the confrontation. Polo’s authoritative voice echoes through the space, reinforcing his control.

Narrative Connections

How this event relates to others in the story

What led here 5

"Tegana reveals the Doctor the TARDIS. , Then assures Polo that the Doctor hides inside with the key, prompting Polo's decisive action."

Tegana exposes the Doctor’s presence
S1E17 · The Wall of Lies

"Tegana reveals the Doctor the TARDIS. , Then assures Polo that the Doctor hides inside with the key, prompting Polo's decisive action."

Tegana exposes the Doctor’s presence
S1E17 · The Wall of Lies

"Tegana assures Polo that the Doctor hides inside the TARDIS, Polo demands the key then Tegana wrenches a key from the Doctor, solidifying Polo's belief in the Doctor's deceit."

Tegana seizes the TARDIS through manipulation
S1E17 · The Wall of Lies

"Tegana's manipulation of Marco Polo starts with his growing concern of the travelers to now finally using that manipulation to take the TARDIS."

Tegana manipulates Polo against the travelers
S1E17 · The Wall of Lies

"Tegana's manipulation of Marco Polo starts with his growing concern of the travelers to now finally using that manipulation to take the TARDIS."

Polo Betrays the Travelers to Tegana
S1E17 · The Wall of Lies
What this causes 1

"Tegana assures Polo that the Doctor hides inside the TARDIS, Polo demands the key then Tegana wrenches a key from the Doctor, solidifying Polo's belief in the Doctor's deceit."

Tegana seizes the TARDIS through manipulation
S1E17 · The Wall of Lies

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Key Dialogue

"TEGANA: When the War Lord Tegana says it is so, Marco, it is so. He is in there."
"DOCTOR: Put that key in the lock, Polo, and you will destroy the ship. Then where will your precious Khan be, hmmm? You need more than a key to enter my ship. You need knowledge. Knowledge you will never possess."
"POLO: Bear witness. I wear the gold seal of Kublai Khan, and by the authority it invests in me, I do hereby seize and hold your caravan in his name. Be warned. Any resistance to this decree is instantly punishable by death."