Silas is with Tana Nile on Earth when the invasion occurs. They see a news broadcast of the Trolls and decide to defend the Earth. They succeed with the help of Thor and the Warriors Three.
He accompanies Thor to find a maddened Balder who keeps repeating the word 'Asgard'. Silas then follows Thor with the others back to an empty Asgard, finding a sentient alien race of lizards - the Sssth - there instead. Silas travels with the lizards, who claim they are slaves and that the Asgardians have been kidnapped by another alien race - the Vrellnexians - to stop Odin and the Asgardians being sold into slavery. He combats a crowd of alien slave traders and they overcome them, only to find the Sssth have betrayed them and they are surrounded.
He fights the horde of Sssth along with the others, but is overcome. He ends up in a dungeon with the rest of the group, and is fed a drugged broth that saps his will and energy. When Thor awakens and avoids being drugged, he used Mjolnir to escape, and later Tana Nile returns to free the submissive captives after defeating the slave traders with a band of resistant aliens, and they all return to Asgard.
He accompanies Thor's group into the Dark Nebula in search of Sif and Karnilla. There they find an asteroid and three hostile miners who mistake them for besieging Gramosians, an alien race whom Thor had encountered before, in the form of Mercurio, the 4D man. Mercurio appears with his forces and attacks the Asgardians. However, the ensuing battle is quickly interrupted by a huge red jewel rising out of the asteroid that has trapped Sif and Karnilla within.
He listens to Xorr's warnings and can do naught to attack because of Sif and Karnilla's entombment within the God-Jewel. They are plunged into a cavern and form a temporary alliance with Mercurio to allow them all to escape. They battle the now hypnotised miners and reach the surface, but a spaceship piloted by the lead miners has taken hold of the God-Jewel and is flying away. They pursue the ship, and Thor destroys their weaponry with Mjolnir, allowing the Asgardians to eventually catch up. Silas is beaten back by Kagg's molecular disruptor, which Odin is able to destroy, but Thor refuses to destroy the God-Jewel and Xorr remains empowered.
He waits under Odin's command, rather than attacking Xorr. As the others bring about Xorr's defeat, he speaks with Tana Nile of Rigel and she confesses that a great danger is looming.
He returns to Asgard with the band, but they find imposters in their place. Silas battles the duplicates. Igron is revealed as the true villain, and is defeated by Balder and Thor. The imposters soon fade. Silas is summoned to Odin's presence, among others, and Odin tells them that a great danger is approaching the Rigellians, and Asgard afterwards.
He departs for Rigel-3 upon the Asgardian starjammer, and finds the planet abandoned, save for a race of mutant Rigellians, whom they are attacked by. The two sides stop fighting when they discover their common cause and they leave to catch up with the Rigellians. He meets with the Grand Commissioner, who informs him of the desperate state they are in, and reveals the power of the Black Stars.
He approaches, under the Grand Commissioner's command, the Black Stars, and encounters a being named Avalon. Avalon battles them, but deems them powerful and courageous, and soon welcomes them inside. Avalon reveals he and his race are slaves, but that they can now attempt to fight back.
He remains behind with Tana Nile and the Rigellians as the Asgardians leave.
He attempts to harm Kragonn, but he and the Rhunians are veritable giants to them and take little notice. They defend themselves from more of the Protectors. They bide their time until Kragonn listens to them and realises the Rhunians don't need to gather energy and cosmic debris, for the rest of the Black Stars are dead planets. Thor and his band leave and the Rhunians stop destroying solar systems.
