The catastrophic confrontation between the vampire cult's ritualistic empowerment (culminating in the Great One's summoning) and the Doctor's desperate technological intervention to prevent cosmic annihilation

Aukon publicly rejects Zargo's attempt to claim the first of the Chosen Ones as sacrificial prey, asserting his authority and defining the sacrifice’s terms. He denies Zargo’s claim outright, declaring …

Aukon finalizes the invocation of the Great One by sacrificing Romana, channeling her life force into the transdimensional ritual. With a fervent incantation, he offers her as a sacrifice to …

The Doctor enacts his desperate plan in a moment of kinetic triumph. As Aukon and his vampires bear down on him with fangs bared and the Great One’s colossal claw …