Y clwb cysgu cŵl ar garlam /
Cummings, Fiona.
Lewis, Siân,1945-
Llandysul : Gomer,
2002.
Argraffiad Saesneg gwreiddiol = Original English edition : London : HarperCollins, 1998.
Addasiad Cymraeg gan = Welsh adaptation by : Siân Lewis.
Sleepover Club (Fictitious characters)
Horsemanship