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
Cartoon Wars Part I an article apart of a series analyzing television episodes that "exemplify the spirit of [their] time and the properties that make television a unique medium", "The A.V. Club"s Noel Murray praised the episode, citing it and "Cartoon Wars Part II" as a good example of Parker and Stone's ability to satirize various forms of media and still be able to write quality episodes despite a large amount of controversy. Seth MacFarlane, creator of "Family Guy", called the episode "funny and accurate." "Cartoon Wars Part I", along with the fourteen other episodes from "South Park"s tenth season, was released on a