(W) Dan Slott (A/CA) Khoi Pham. Written by DAN SLOTT Pencils & Cover by KHOI PHAM SIEGE BLOCKBUSTER TIE-IN!! SALVATION Pt. 1 of 2 "Heir Apparent" THE AVENGERS' GREATEST THREAT RETURNS! AND HE'S NOT ALONE... A rag-tag team of Mighty Avengers are thrust onto the front lines of SIEGE...with no one to lead them! And where's HANK PYM? Trapped in Pym-Space with his greatest enemy* his sinister cybernetic "son"* ULTRON! A war on two fronts* a team divided* and when it's over...not everyone will be coming back! Big threats* big changes* and the biggest Avengers surprise of them all revealed! 32 PGS./Rated A ...$2.99