Peepiceek

Description
Peepiceek was a Talking mouse, second-in-command to Reepicheep, who later became leader of all the mice in Narnia.

Biography
"I shall sink with my nose to the sunrise and Peepiceek will be the head of the talking mice of Narnia."

- Reepicheep naming Peepiceek as his successor.

He fought at the Telmarine Castle Night Raid and the Second Battle of Beruna with Reepicheep and the other Talking Mice, during which Reepicheep's tail was cut off. When Reepicheep asked Aslan to restore his tail, Peepiceek said that if Aslan refused, the rest of the Talking Mice would cut off their tails as well. It was this display of loyalty that moved Aslan to restore Reepicheep's tail.

Reepicheep named Peepiceek as his successor as the leader of the Talking Mice of Narnia on Ramandu's Island, during the voyage of the Dawn Treader.