"The Weakest Point" Acts of Vengeance crossover. Script by John Byrne. Art by Paul Ryan (breakdowns) and Tom Palmer (finishes). Cover by Paul Ryan and Tom Palmer. A dozen flying robots interrupt a peaceful afternoon on Avengers Island! Are the robots trying to kill Earth's Mightiest Heroes? No, not really. They just want to sink Hydro-Base to the bottom of the harbor…by poking large holes in the floating island's support system! The Avengers should be able to stop these rambunctious robots; however, only one avenger is home…Quasar! Left with no other choice, Quasar rallies the mansion's staff to defend the island! Can the likes of Peggy Carter, Fabian Stankowicz, and Michael O'Brien keep Hydro-Base afloat? Or will the Avengers' beloved mansion descend to a watery grave? Cameo appearances by the Mandarin, Loki, Doctor Doom, Starfox, and Nebula.