Capital Mysteries #7: Trouble at the Treasury

From popular A to Z Mysteries author Ron Roy comes a red, white, and blue mystery perfect for the election season! In the seventh book of the Capital Mysteries—an early chapter book mystery series featuring fun facts and famous sites from Washington, D.C.—KC and Marshall are thrilled to take a tour of the United States Treasury where stacks and stacks of money zip off the presses in the printing and engraving building, millions of dollars a day. But the friends find that a bundle of bills is mis