Forced by the incredible Mandragora Helix to land on Earth during the Italian Renaissance, Dr. Who walks right into a Machiavellian plot in the court of the Medici. But while studying political maneuvers, he discovers a plan of an alien intelligence to do
MARINUSa remote force-shielded island set in a sea of acid, governed byTHE CONSCIENCEthe ultimate computer which rules and balances the gentle life of Marinus, guarded byARBITAN THE KEEPERruthless protector of a peace-loving race threatened byYARTEKWarlor
