With a secret code and a magnifying glass from his new spy kit, Henry is all set for a great spy adventure. His dog Mudge is a master of disguise in his spy hat, and together they're traveling incognito, ready to flirt with danger. When a mysterious note gives them their first clue, the two best fri...

With a secret code and a magnifying glass from his new spy kit, Henry is all set for a great spy adventure. His dog Mudge is a master of disguise in his spy hat, and together they're traveling incognito, ready to flirt with danger. When a mysterious note gives them their first clue, the two best friends set out on the trail to a priceless discovery. Full color.

Henry and his dog Mudge put their spy skills to the test in this Ready-to-Read adventure.

With his new spy kit and his faithful sidekick Mudge, Henry is ready to look for clues, steal secrets, and flirt with danger. One of the first things Henry and Mudge find is a coded message...could there be another spy in the neighborhood?