Transitional chapter book about a spy who has lost his dog.

Transitional chapter book about a spy who has lost his dog.

Oh no! Sludge can't help Nate the Great on this case, because Sludge himself is the mystery now! He went missing when Nate the Great went into a shopping center to buy a present (for Sludge!).

Nate's friends try to help him out, but in the end, help comes from a very unexpected (and expected) place....!

Nate's dog, Sludge, goes missing in a department store. ( )

Nate, the great detective, depends on his dog, Sludge, to help him solve all of his cases. But Sludge can't help him this time; Sludge is lost! Lost inside a big department store on a rainy day. Nate frantically searches for his best friend and trusted helper. Salespeople have spotted a wet, slippery, sloppy dog running about. Is Sludge hiding from them? Nate looks high and low, and in places he'd rather not look at all. But every clue leads to a dead end . . . until Nate realizes that Sludge can help him with this case!