Guardians of the Edge: Last of the Portal Keys by Patti Larsen
Approx. 47,470 words.
Published on August 21, 2012.
Twelve-year-old master thief Aiden Trent has been trained by the best—his parents. It's rumored there is nothing they can’t steal. So when an easy job comes up, they take it. Trouble is, the goal is no ordinary prize. In a flash of light, his parents disappear, leaving Aiden to uncover the secret behind the artifact while he flees from the man who hired them to steal it in the first place.