Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! Kids love collecting the entire alphabet and super editions! With over 8 million copies in print, the A to Z Mysteries have been hooking chapter book readers on mysteries and reading for years. Now this classic kid favorite is back with a bright new look! X is for XRay... X marks the spot! When the kids go to a concert, Dink injures his arm. At the same time, the singer's diamond necklace is stolen. Are the two mishaps connected? And could Dink's Xray have the answers? It's up to Dink, Josh, and Ruth Rose to examine the evidence!