Revenge of the Alien

La Vendetta Dell'Alieno (Revenge Of The Alien) is an Italian children's book by Cristina Brambilla in the "Misteri A 4 Zampe" series.

Premise
A precious and rare meteorite is on display at the planetarium and Mystery Inc. goes to see it. But suddenly a monstrous creature with a huge green head and long claws bursts into the room. Is it an alien? Scooby and his friends want to find out.