Schoolgirls Jill Dentry and Sandra Grey had time-travelled back to Victorian times by means of a moonstone ring belonging to Merlin, magician at King Arthur’s court. Merlin needed them to bring back something called the ‘ Black Dolphin of the Sun’ to help break the spell which held him trapped in the 20th century. The girls ended up in a sinister school run by Mrs Hogg and a brutal-looking porter called Thresh.
- Slaves to the Moonstone – Judy: #755 (29 June 1974) – #766 (14 September 1974)
- Slaves to the Moonstone – Judy: #814 (16 August 1975) – #818 (13 September 1975)