After Humphrey's fur-raising holiday, he was looking forward to returning to Room 26. Mrs Brisbane is still there, but Humphrey is shocked to find that the classroom is filled with strangers. At first, all Humphrey wants to do is find his old classmates but he soon learns that these new students REALLY-REALLY-REALLY need a helping paw.

When Humphrey's teacher, Mrs Brisbane, doesn't come to school, he is unsqueakably worried. Then a supply teacher, the mysterious Mr E, arrives and everything changes. Class is fun, but are Humphrey's classmates learning anything? And what had happened to their wonderful teacher?

Humphrey and his friends in Room 26 learn about ancient Egypt. Mummies, pharaohs, pyramids and plenty of SHH-SHH-SHH secrets abound! Will Humphrey be able to solve the mysteries of the pharaohs...?

Ahead of a big author visit, Humphrey and his friends try writing their own stories, but Humphrey worries that hamsters don't have any imagination; he's finding creative writing just too hard. While he helps out his friends, Humphrey encounters real, live parrots, dragons and even ghosts ...and finally manages to let his imagination soar.

Jingle bells and dancing snowflakes, Christmas was coming and suddenly Humphrey's life as a classroom hamster became unsqueakably exciting! The music teacher, Miss Lark, spent a lot of time preparing the class for the school show so there was plenty of FUN-FUN-FUN. But Humphrey's classmates were also having some BIG-BIG-BIG problems.