ThunderCats (comics) entered the Book of Omens to begin his training and claim his rightful place as Lord of the ThunderCats, but Mumm-Ra uses a powerful spell to keep Lion-O trapped in the book for several years in real time, not "Book" time, and seizes control of Thundera afterwards. In the follow-up mini-series, "The Return" (written by Gilmore and illustrated by Benes, Pimental and Lea), published in 2003, Lion-O returned to Thundera to find it enslaved to Mumm-Ra. Several of the ThunderCats are scattered. Panthro, who was left in charge while Lion-O was away, was forced into slave labor. Tygra and Cheetara
O Canada (TV series) O Canada (TV series) O Canada is a Canadian-American animated television anthology series, broadcast in the United States on Cartoon Network. "O Canada" was the first Canadian cartoon series to air on Cartoon Network. The show also frequently airs in Canada on Teletoon, but not as much as it does in the United States on Cartoon Network. Shown mainly on Sunday nights (early Monday mornings) at 12:00 midnight ET, "O Canada" featured a selection of animated shorts from Canada, mostly from the archives of the National Film Board of Canada. Some of the animated shorts featured were part of the