One would think that Calder Cove's children, and their parents, would be reluctant to have anything to do with Merlin's School after the adventure of The Ring of Curses. But there is a strange and powerful force that surrounds the place and this force seems to remove all hesitancy. Once again invites are eventually dispatched finding selected children waiting eagerly to gain entrance to the fortified institution. This year though, Bridget and some of her friends become savvy to a dangerous scheme about the retrieval of a magical stone and a sword. Everyone feels safe enough about their involvement - or lack thereof - until they stumble through a portal and become trapped inside another dimension.
Pursued by an assortment of Ogres, Goblins and Trolls, the children must make tracks to Grave's End; the last known resting place of this mysterious and much coveted weapon.

More fun, more mystery and more magic, and definitely more thrills. It's a read not to be missed.