Flick journeys to a dangerous new world in this magical third book in the Strangeworlds Travel Agency series that's a "moving conclusion to a delightful trilogy" (Kirkus Reviews, starred review).

Flick and Jonathan have faced countless dangers as members of the Strangeworlds Society and come out alive on the other side. But what do they really know about the society they are risking their lives for?

Why does it exist? Who is Strangeworlds there to protect? And what in the worlds is happening to the multiverse now? With worlds everywhere under threat of collapse and mysteries abounding, it's up to Flick and Jonathan to discover the answers to these questions.

And only if they can uncover the secrets of Strangeworlds, and the secrets of a mysterious new world called The Stormforest, will they have any hope of defending their world?and others?from the threat that is facing them all.