The Were-plant

La Pianta Mannara (The Were-plant) is an Italian children's book by Cristina Brambilla in the "Misteri A 4 Zampe" series.

Premise
What's more relaxing than a stroll among exotic trees and fragrant flowers? That's what Mystery Inc. does, on a trip to the Botanical Gardens. But when a terrifying were-plant steals rare and precious orchids, the five friends investigate.