The Hotel Mystery — Martin Widmark

It is Christmas Eve, and the grand Braeburn family has come to stay in the luxury suite of Valleby's hotel. With them, they have brought their extremely valuable dog. The hotel manager promises the family that he'll take great care of their dog -- but before they know it, the dog has gone missing without a trace! Jerry and Maya, the local young detectives, are brought in to help sniff out the missing hound. All the evidence suggests that one of the hotel staff had a hand in the case, but who could it be?