The longest-running "Sonic"-based publication is the 290-issue "Sonic the Hedgehog", an American comic book published by Archie Comics from 1993 until its cancellation in 2017. Archie also published a number of spin-offs, such as "Knuckles the Echidna" (1997–2000) and "Sonic Universe" (2009–2017). Archie's comic drew its premise from the "Sonic the Hedgehog" television series, with Sonic and a resistance force fighting the dictator Eggman. Originally written as a "straightforward lighthearted action-comedy", "Sonic the Hedgehog" became more dramatic after Ken Penders began writing it with issue #11. Penders remained the head writer for the following 150 issues and developed an elaborate lore unique to the series. Ian Flynn became head writer in 2006 and remained until the series' cancellation. Following a legal battle with Penders over ownership of characters he created, in 2013 the series was rebooted, leaving only characters introduced in the games or which predated Penders' run.