Libby the Psychic Dog is a series of cozy mysteries intended for adults, but the series is suitable for all ages.
When Mama goes on a trip, Eddie lives with Charlie, an older man who can’t hear or see well. Percival stayed with him during one of his earlier adventures, so he knows Charlie, but he notices that Charlie isn’t doing well. On top of that, a woman living next door has visitors all hours of the day and night. She doesn’t like Charlie’s dog, Eddie, who barks whenever someone comes to her door, and she threatens to call the police if Eddie doesn’t stop barking. Percival knows she’s hiding something, but when he finds a broom left on Charlie’s step where the older man would trip and fall, Percival takes action and calls upon his friends to help him find out what the woman is up to The Nefarious Neighbor is the fourth book in the Libby the Psychic Dog series.