TO-T-U-K served faithfully as a Green Lantern for nearly three thousand years. He was forced to retire following the Crisis on Infinite Earths. The Lantern had no desire to retire and would have preferred to die in service to the Green Lantern Corps, however, it was the will of Guardians of the Universe that TO-T-U-K pass his power ring on to another. TO-T-U-K was ordered to travel to Valstan C5, a planet in the fifth sector of the globular cluster of sector 1287. There, the retiring Green Lantern would turn over to his successor the power ring he had wielded for nearly three millennia.