Author: Sioned Wyn Roberts.

Twm is a thief, a cheat and a bully. But something is missing in his life and he doesn't know why. One dark night, when Twm is out thieving, he comes face to face with his fate ... and discovers a shocking truth that changes his life for ever.

Awdur: Sioned Wyn Roberts.

Dwi'n casau Robat Wyllt. Bron iawn gymaint ag ydw i'n casau fy hun.

Mwrddrwg ydy Twm. Dwyn. Twyllo. Bwlio. Mae o’n giamstar ar y cyfan. Ond mae rhywbeth ar goll, mae gwacter yn ei fywyd a does ganddo ddim syniad pam.

Un noson dywyll, pan mae Twm y Lleidr wrth ei waith, daw wyneb yn wyneb â’i ffawd, a darganfod gwirionedd sydd mor ysgytwol, mae’n newid cwrs ei fywyd am byth.