Arthur and his friends are on a class visit to the local museum. While his friends dash about, Arthur takes time to inspect all the interesting things around him. One of those interesting things is a glass case housing a strange looking creature known as The Curiosity.
As Arthur continues his visit to the Museum, the reader catches glimpses of The Curiosity who has escaped his glass case and is now following Arthur about.
When Arthur leaves the museum, he must leave his new friend behind… or does he?