During the "War of Kings" storyline, Medusa was with the Inhumans when they went into space and forged an alliance with the Kree and was also there when Havok, Lilandra Neramani, and the rest of Havok's Starjammers requested asylum from Vulcan and his forces. When Maximus speaks out, Medusa pushes him aside. After Ronan is wounded in battle with Vulcan's forces, Medusa states to the Shi'ar that they had made a big mistake and vows that they will pay for this. Medusa does a broadcast on Black Bolt's behalf and tells the citizens of the Kree Empire that they have suffered an unprovoked assault by the forces of the Shi'ar. The shield that once protected their star system has fallen. During a discussion with the other members of the Inhuman Royal Family, Medusa states that Shi'ar blood will spill in the next fight while trying to keep the Kree in line. Medusa and Black Bolt approve of Maximus' idea to create a mechanism to help them in their fight against the Shi'ar. Medusa ends up devastated when the T-Bomb goes off with Black Bolt and Vulcan still where the T-Bomb was. While weeping in Crystal's arms, Medusa declared that they have won.