Cthun is a horrific extra-dimensional being that appears to exist in Todash space.
N. saw the creature within the stone circle at Ackerman's Field, and spent nearly a year replacing the eighth stone that kept Cthun imprisoned. After N.'s death, the task was later inherited by Dr. John Bonsaint. There is also a mention of the phrase "leatherhead", which is how the aliens in Under the Dome were described.
Future Adaptations with Cthun
The story, even before its first publication, had been adapted as Stephen King's N., a multi-part graphic video series, as part of the marketing campaign for King's upcoming collection. The series consists of 25 one and a half-minute episodes totaling approximately 30 minutes in length. Featuring sophisticated production values, the episodes were drawn by artist Alex Maleev, whose work has appeared on NBC's Heroes, and colored by comic-book colorist José Villarrubia, best known for his collaborations with Alan Moore, with animation and production by motion graphics studio Motherland, Inc. They were adapted by Marc Guggenheim, co-creator of the ABC TV series Eli Stone with creative oversight from Stephen King. The episodes are presented in a cutout animation format, complete with comic book–style graphics, an original score, sound effects, and a full cast of voiceovers that includes actor Ben Shenkman. The series is available on DVD as part of the special collector's edition of Just After Sunset.
The first episode went online on July 28, 2008 (although viewers who signed up for updates online were given a sneak peek at the first episode the day before). Conceived in a partnership with Scribner, Simon and Schuster Digital, Marvel Entertainment, and CBS Mobile, it is a completely new concept for an online comic series as it is available on mobile phone networks in addition to the iTunes Store and the series official website. According to Simon and Schuster, the series has been viewed over 1 million times via mobile phones and on the Internet.
In March 2010, Marvel published the first issue of a comic book adaptation of N., a four-issue limited series.