Interesting book and premise: a teenage boy who loves to collect the elements and who gets in over his head when he comes upon a rock with mysterious properties. Itch was a good MC. At times he was incredibly brave, and at others, he acts like a kid and puts himself ahead of what should be done. His sister Chloe and his cousin Jack are mixed up with trying to keep the rock out of the "wrong hands." The ending is suspenseful, and it wrapped up nicely while it left a few loose threads dangling so that I just might read the next book in the series.