WRITTEN BY DENNIS O'NEIL; ART BY TAN ENG HUAT; COVER BY DOUG MAHNKE AND TOM NGUYEN. The earth-shattering conclusion ( 3/3) to the "Extinction" trilogy by comics legend Dennis O'Neil and red-hot artist Tan Eng Huat (DOOM PATROL)! The JLA races to prevent its once-friendly extraterrestrial visitor from destroying our planet. How can they stop a creature who can look like anyone ? or anything? FC, 32 PG.$2.25 Cover price $2.25.