The Seeker was a member of the Inhumans who was sent by Maximus in order to return the exiled Inhumans back to Attilan. He was sent at the same time as Gorgon, and during the Fantastic Four’s fight with Gorgon and the Inhumans, Triton was forced to jump off a dock into the water to save himself, where the Seeker tracked him and captured him. The Seeker also broke in to the Fantastic Four’s Baxter Building and kidnapped the Dragon Man, thinking he was as an Inhuman; though he found out shortly that he was not.
Though when the Fantastic Four tracked him down, he offered the Dragon Man to them; but the beast awoke in shackles and broke his way out of his restraints, shattered the water globe that held Triton, and rampaged his way out into the city. The four heroes saved Triton using the Invisible Girl’s powers, but the Seeker soon claimed him under Inhuman law. Reluctantly, Mister Fantastic let him go, but placed a homing device on the Seeker’s ship and later followed them to Attilan.
Back in the city, the Inhuman’s former leader, Black Bolt, took his crown back from his traitor brother. Maximus then revealed to the Seeker and Triton that he was firing off his atmo-gun, which would destroy all the humans on the planet. But once he did, his brother found him and faced off against him. The Seeker quickly pledged himself to Black Bolt, insisting that he was his loyal servant, which Black Bolt ignored. Then, when it was revealed that Maximus’ weapon couldn’t hurt the humans because they were the same species as the Inhumans, Maximus went out of control and reversed it, sealing up the Seeker and the rest of the Inhumans in a Negative Zone over Attilan. Soon, Black Bolt freed the Inhumans with the use of his powerful voice, setting the rest of them to rebuild the city while he and the rest of the royal family left to explore the human world.