Addasiad Cymraeg gan = Welsh adaptation by : Elin Meek.
Argraffiad Saesneg gwreiddiol = Original English edition : Harlow : Pearson, 1999.
Pynciau llosg by Wendy Body. ISBN 184323064X. Published by Gwasg Gomer in 2002. Publication and catalogue information, links to buy online and reader comments.