Cyhoeddwyd yn wreiddiol = Originally published: London : Egmont, 2007.
"Gyda rysáit cacen" - nodyn ar y clawr = Note on cover.
Prawf coginio by Pippa Goodhart. ISBN 9781855967540. Published by Gwasg y Dref Wen in 2007. Publication and catalogue information, links to buy online and reader comments.