Rani's Disguised Poisoned Drink Bottle

A glass vessel (bottle or tumbler) containing a disguised poisonous liquid offered by the Rani to the Doctor in her laboratory as part of a psychological manipulation attempt. The vessel's true nature is exposed when the Doctor rejects it outright, foiling her lethal intent. The object serves as both a drink container and a weaponized tool of deception during a pivotal confrontation where the Rani attempts to assert control through psychological pressure and coercion.