Written by BRIAN MICHAEL BENDIS. Penciled by STEVE MCNIVEN. Cover by STEVE MCNIVEN. THE MYSTERY OF THE SENTRY REVEALED! The Avengers try to help the most powerful super hero in the world figure out who he is and where he came from! But will this knowledge destroy the man they're trying to help? Collects NEW AVENGERS #7-10 and the NEW AVENGERS: MOST WANTED FILES handbook. 152 PGS./Rated A .