The book incorporates controlled vocabulary suitable for Stage 5 readers, focusing on building reading fluency and extending story comprehension. The inside cover includes teaching support notes that provide prompts for prediction, discussion, vocabulary focus, and post-reading activities. This title also offers opportunities to link learning with cross-curricular themes such as history (pirates), geography (maps), and drama (role-play and storytelling).

In The Magic Key, Biff, Chip, and Kipper are tidying up their bedroom when they come across a mysterious old key in a box. That night, the key begins to glow with a magical light and suddenly transports the children—and their dog Floppy—into a strange and exciting new world. The story ends just as the children are pulled into this unknown place, setting up the premise for many future adventures in the series.