When Will sets out to take on Prince Phobos by herself she soon realises she will need the help of her friends. The unrest in Meridian is growing and Prince Phobos is very pleased. His new plan is to have the underworld of Metamoor travel through a portal to Heatherfield. When Hay Lin's map alerts her that a portal is open, Will is the first to react. She travels through the strange royal gardens in Metamoor, where she discovers Prince Phobos's dark secrets. Now Will needs the strength of all of her friends to find her way out of the darkness. With full colour comic inserts at the start and end of the story.

 

This book features in the following series: W. I. T. C. H. Adventures, Witch Series .

There are 144 pages in this book. It is a novel. This book was published 2005 by HarperCollins Publishers .

The Unknown Adventurer is still believed to be at large in the wild.