At the start of the " Siege " storyline, Doom was with the Cabal discussing the current problems with the X-Men and both Avengers teams. Doom demands that Osborn at once reverse his course of action against his ally Namor, to which Osborn refuses, saying that he and Emma Frost had "crossed the line" with him. Doom, loathing Thor and the Asgardians all the more due to his recent defeat at their hands claims that he will support Osborn's "madness" should Namor be returned to him, but Osborn refuses. Osborn's mysterious ally, the Void, violently attacks Doom, and an apparently amused Loki tells the Hood that he should go, as there is nothing here for either of them, which the Hood, now loyal to Loki due to his hand in the restoration of his mystical abilities, agrees. However, it is revealed that "Doctor Doom" who had been involved with the Cabal was actually an upgraded Doombot, which releases swarms of Doombot nanites against the Cabal, tearing down Avengers Tower and forcing its denizens, such as the Dark Avengers, to evacuate. Osborn is rescued by the Sentry, who destroys the body. When Osborn contacts the real von Doom, Victor informs him not to ever strike him again or he would be willing to go further.