Author: Gwenno Hughes.

Series: Cyfres Corryn.

An original short historical novel relating the story of the last generation of children at Capel Celyn school fighting to save their community from being lost under the waters of Lake Tryweryn during the 1960's; for 7-11 year old children. 17 black-and-white illustrations. Tir na n-Og Award winner 2000. Reprint. First published in 1999.

Awdur: Gwenno Hughes.

Cyfres: Cyfres Corryn.

Nofel fer wreiddiol hanesyddol yn adrodd stori'r genhedlaeth olaf o blant Ysgol Capel Celyn yn ymladd i achub eu cymuned rhag cael ei boddi dan ddŵr Llyn Tryweryn yn ystod yr 1960au; i blant 7-11 oed. 17 llun du-a-gwyn. Enillydd gwobr Tir na n-Og 2000. Adargraffiad. Cyhoeddwyd gyntaf ym 1999.