An ageing ice hauler owned by the Pur'n'Kleen Water Company, running water from Saturn's rings to Ceres and the Belt. The Canterbury's destruction by a stealth ship - later revealed to be built by Protogen with Jules-Pierre Mao's funding - is the inciting event of the entire series. Its distress call, broadcast by Jim Holden, exposes the attack to the system and triggers the political crisis between Earth, Mars, and the Belt. The surviving shuttle crew become the Rocinante's founding members.