From the press release:

Marvel is pleased to present your first look at Ultimate Comics Mystery #3, featuring the awe-inspiring writing talents of Brian Michael Bendis and the electrifying art of Rafa Sandoval! The Ultimate Mystery shall be revealed! Spider-Man and Spider-Woman infiltrate the bowels of Roxxon while Sue, Ben and Johnny find themselves fighting to the death against an out of control Captain Marvel. All this and the birth of a new Ultimate hero! Ultimate Comics Mystery #3 is a must read that will change the Ultimate Universe forever and pave the way for Ultimate Comics Doom!

Preview Pages:

ULTIMATE COMICS MYSTERY #3 (JUL100526)
Written by BRIAN MICHAEL BENDIS
Penciled by RAFA SANDOVAL
Cover by J. SCOTT CAMPBELL
Rated T+ …$3.99
FOC – 9/2/10, On-Sale – 9/22/10

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4. Marvel Unveils All Star Creative Team For Ultimate Spider-Man Animated Series
5. Your First Look at Ultimate Comics Avengers 3 #1!