A reformed Emerson traveled to the Earth's magnetic North Pole to study it. Emerson was at the point where the lines of magnetic force converge when an earthquake plunged him into a deep crevice. At the bottom of the crevice lay a glowing blue blob. The radiation from the blob altered Emerson's perceptions, allowing him to understand the blob's intentions to dehydrate the entire Earth. Emerson was able to subconsciously influence Hal Jordan into becoming Green Lantern, but was unable to bring the Lantern to the North Pole. In desperation, Emerson created a mental duplicate of his evil alter ego. Doctor Polaris took advantage of the situation and attacked Green Lantern by blocking his power battery with a magnetic barrier. Doctor Polaris flew into Earth's orbit to increase the solar radiation reaching the planet. As he left the Earth's magnetic field, the barrier around the power ring faded, allowing Green Lantern to recover. Green Lantern managed to use micrometeorites to form an iron mask around Polaris' head, blocking off his vision. Back on Earth, Emerson was able to use telepathy to warn Green Lantern of the alien threat. Once Green Lantern disintegrated the blob, the mental image of the evil Doctor Polaris faded away.