investment gradeWritten by JEPH LOEB Penciled by SIMONE BIANCHI & ED MCGUINNESS Wraparound cover by SIMONE BIANCHI 'EVOLUTION,' PART 1 A DOUBLE-SIZED SPECIAL 50TH ISSUE! WITH SPECTACLAR WRAPAROUND COVER BY BIANCHI! Superstar Jeph Loeb (Batman: Hush) is joined by future superstar Simone Bianchi for the biggest, best and, quite possibly, last battle between Wolverine and Sabretooth! These sworn foes have been locked in an endless grudge match that goes back longer than either can remember -- or even imagine. The key to victory is eons old, and it's certain to rock their world. Think you've seen Marvel's fiercest go toe-to-toe before? Those were just warm-ups. Also featuring a 12-page backup story 'PUNY LITTLE MAN,' by Loeb and superstar Ed McGuinness (Superman/Batman): He's big, he's green, he's mean, and he just got his mitts on Logan. Now THIS is gonna hurt.