In this delightful sequel to The Glass Castle...Much is at stake while the kingdom enjoys the greatest games on earth. 

“Hello?” Avery called, carefully stepping into the darkness.
Suddenly the air grew colder and the scent of wet earth grew stronger as the ground beneath her formed steps—cold, jagged stairs carved into stone—though she had no idea how many there were or where they led. She steadied herself and descended carefully, sliding each slippered foot over the edge and holding her breath.
Everything told her to turn around and go back to her room to safety. . .

The castle is buzzing with excitement as preparations begin for the upcoming Olympiad. Everyone knows the queen is still on the hunt for the king’s rightful heir, as kids begin mysteriously disappearing from the castle. 
When Avery learns that a male runner is needed for an important race in the Olympiad, she volunteers so she can get close to the action. Will she be able to hide her true identity. . .or will she be discovered? One slip-up could mean a trip to the dungeon--or worse. 

The Ruby Moon is Book 2 in the Thirteen Series
Look for...
The Glass Castle - Book 1
The Paper Boat - Book 3