The Sentry (The Sentry Vol. 3 #2)

Someone or something has invaded Sentry World, and now Bob Reynolds finds himself in a race against the clock to try and stop the mystery invader before he can unravel everything the Sentry has worked so hard to build. But if Bob fails, the Void will be set free and the Marvel Universe will be torn apart. Can the Sentry save the day, or has Bob failed once again to contain the monster within?