What is the difference between Panic: Ultimate Edition and Panic?

PANIC: ULTIMATE EDITION is a “re-imagining” of my 2005 novel PANIC. Published in the UK only, PANIC: ULTIMATE EDITION is written specifically for teenagers, with the novel’s hero, Evan Casher, recast as a fifteen-year old student. It is not a sequel to PANIC and I have no plans to publish it in the US at this time.