Past the Size of Dreaming

The two travelers have come to the town where Edmund grew up, and found shelter, at least for awhile, in the benevolently haunted house that was a refuge for Edmund and his friends when they were children. But the house begins to speak to Matt, urgently, telling her that she and Edmund have to leave, to seek out his long-scattered friends.
As they search, they find that some have grown up to be ordinary, untouched by any hint of wild magic. Others, though, have been transformed in ways that defy imagination.
Now, they must all come together again, in the place none has ever forgetten. For a darkness is rising, a dangerous, powerful entity. And the only chance of stopping it lies in the hearts of the lost children of the house.