While attending the Penelope Gwinn concert, Dink injures his arm. At the same time, the singers diamond necklace is stolen. Could the two mishaps somehow be connected? And could Dinks X-ray be a clue? Illustrations. nHelp Dink, Josh, and Ruth Rose solve mysteries from A to Z! n n Kids love collecting the entire alphabet and super editions! With over 8 million copies in print, the A to Z Mysteries(R) have been hooking chapter book readers on mysteries and reading for years. Now this classic kid favorite is back with a bright new look! n n X is for X-Ray . . . X marks the spot! When the kids go to a concert, Dink injures his arm. At the same time, the singers diamond necklace is stolen. Are the two mishaps connected? And could Dinks X-ray have the answers? Its up to Dink, Josh, and Ruth Rose to examine the evidence!