text illustrations by Stephen Dell; cover illustration by Val Biro text illustrations by Stephen Dell; cover illustration by Lesley Smith text illustrations by Stephen Dell; cover illustration by ALan Fredman text illustrations by Stephen Dell; cover illustration by Alan Fredman text illustrations by Kevin Kimber; cover illustration by Val Biro text illustrations by Stephen Dell; cover illustration by Maggie Downer text illustrations by Brian Lee, cover illustration by Alan Fredman text illustrations by Jan Lewis; cover illustration by ALan Fredman text illustrations by H. J. Ford; cover illustration by Katy Jackson. text illustrations by Thomas Taylor; cover illustration by Alan Fredman