Emily Rodda - The Third Door (Three Doors, Book 3) [Hardcover] (used)

Against all odds, Rye and Sonia have survived the perils behind the gold and silver Doors. But Weld is still under threat, and Rye knows what he has to do. One Door remains a mystery—the ancient wooden Door that he has been drawn to from the beginning.

For good or ill, his desperate quest will end beyond that Door.

All he has to do is dare to go through it…