64 books • 24 series
Molly's Magic Carpet (Usborne Young Puzzle Adventures) (Usborne Young Puzzle Adventures S.) (Young puzzle adventures)
Spooks' Surprise (Usborne Young Puzzle Adventures) (Usborne Young Puzzle Adventures S.) (Young puzzle adventures)
Midnight Ghosts (3.2 Young Reading Series Two (Blue)) (Spine Chillers) (Usborne Spinechillers) (Usborne Young Reading: Series Two)