Ultimate Book of Spells

The Ultimate Book of Spells, or UBOS, is a Canadian children's animated television series which began production in 2001. The series aired on YTV in Canada, Toon Disney in the United States and on CBBC and Pop in the United Kingdom, but ran for only 26 episodes.

Cassy, Verne & Gus are three gifted students who go to an enchanted school where they learn about magic and how to use it. One day they receive a strange talking book in the mail. The book says his name is UBOS (Ultimate Book of Spells) and together they must journey to the center of the Earth to stop Zarlak. Zarlak is a powerful wizard who is stealing all of Earth's magic so he can ultimately escape his prison, at the center of the earth, into which he was banished after a great battle. This begins a journey of a lifetime for the three students – one they will never forget. They have to juggle school life and fighting the forces of evil with only each other and UBOS for help.

Rootopia of All Evil (Episode 4)
Zarlak uses a mind control spear to control the trolls.and cassy

Dark image (Episode 19)
Zarlak transform Verne and Cassidy in an evil version of themselves. They try to destroy Gus and then each other, but are saved by Gus and the M.B.O.S

Big Girls Don't Cry (Season 1, Episode 22)
A giant girl named Ilsa comes to Vonderland and becomes roommates with Cassy. Cassy keeps trying to help her fit in, but Lucretia (one of the evil twins) keeps doing spells behind her back to make it seem like Cassy is making fun of her. Lucretia pretends to be her friend and gets Ilsa kidnapped by Zarlak! The trio have to save her!