The Dragon Heir is by Cinda Williams Chima. The third book in The Heir Chronicles. Jason sneaks into Raven's Ghyll and discovers an unknown cache of magical objects. He takes as many as he can carry, including the powerful Dragon's Heart, but he doesn't get away clean. He carries the jewel back to Trinity and now Trinity is under siege. Now Jason must bring the Elicitor, Madison Moss, back to Trinity to uncover the secret of the stone which could save them, or destroy them all. Fans of this series will not be disappointed!
Ratings: 8th grade - 8 out of 10 - MP (mild profanity) - V (violence).