Tamerlane Graves, a veteran activist of the Universal Primate Captivity Crisis movement at The House of Cormellon, has been on several primate retrieval operations in the 30 years since earning their Nursing Science Doctorate. Having always lived within the Doctor caste, Tamerlane was raised in an environment of empathy and good will, and those values led them to join the Critical Earth Expedition. Now, with the fate of the Earth primates in the balance, Tamerlane and the Doctors will do what is needed to liberate them from their captivity.