This four-story collection includes:Nate the Great and the Phony ClueEarly one morning, a torn slip of paper with the mysterious letters VITA appears on Nate the Greatâ€™s doorstep. He and his faithful dog, Sludge, set off to solve this latest mystery. Nate the Great and the Missing KeyNate doesnâ€™t especially want to go to a birthday party for Annieâ€™s dog Fang. But he canâ€™t resist a mysteryâ€“and when Annie loses her house key and canâ€™t get inside to set up the party, Nate and his trusty dog, Sludge, are hot on the trail. Nate the Great and the Snowy TrailNate the Great, super sleuth, has his work cut out for him when Rosamond loses his birthday present. He and his dog Sludge must face snow, ice, and ferocious-looking Fang, Annieâ€™s dog, to solve the case. Nate the Great and the Crunchy ChristmasAnnieâ€™s dog is unhappy. When Fang is unhappy, everyone is unhappy. Especially Nate the Great. So Nate agrees to sniff out Fangâ€™s mysteriously missing Christmas mail.