Surus

Surus was the name of a talking elephant who was featured in the Doctor's fictionalised story of Hannibal's journey through the Alps. Surus, along with the other fictional elements in the story, were created by Doctor's Possibility Generator.

In the story, Surus and with Hannibal threatened the story-Doctor about the future of Hannibals's invasion and what the Romans were planning. (BFDWU: Auld Mortality)