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
King Leonardo and His Short Subjects Black Family Channel aired this show on its "BFC Kids TV" programming block until the channel's demise a year later. The characters of this show were also featured in an eight-issue comic book produced by Dell Comics and Gold Key. King Leonardo and His Short Subjects King Leonardo and his Short Subjects is an animated cartoon series released in 1960 by Total Television (which would later rename itself Leonardo Productions after the main character of this show), sponsored by General Mills. The show focused on Leonardo the lion (voiced by Jackson Beck), the well-meaning but often inept king of Bongo