Author: Kathryn Willett.

A Welsh adaptation of an entertaining novel about a brother and sister from the present who attempt to clear the name of a wrongfully-jailed miner from the past; for 7-11 year old readers. 6 black-and-white illustrations.

Awdur: Kathryn Willett.

Addasiad Cymraeg o nofel ddifyr am frawd a chwaer o'r presennol yn ceisio canfod tystiolaeth i adfer enw da glöwr o'r gorffennol a garcharwyd ar gam; i ddarllenwyr 7-10 oed. 6 llun du-a-gwyn.