King of Thorn (いばらの王, Ibara no Ō) is a science fiction manga series by Yuji Iwahara. It was published in by Enterbrain in the seinen magazine Monthly Comic Beam between October 2002 and October 2005 and collected in six bound volumes. It is licensed in North America by Tokyopop, with the final volume published in November 2008. The series is about a Japanese girl named Kasumi who is put in suspended animation to escape a mysterious plague that turns people to stone, and upon waking appears to be one of only six survivors in a world run wild. It has been praised as a "gripping" survival story with art that effectively conveys tension and action.
A feature anime film adaptation produced by Kadokawa Pictures and directed by Kazuyoshi Katayama has been anounced, with an anticipated release in 2010.