On 5 April 1944 "Hyperion" steamed from the Solomons with 45 passengers in addition to her usual cargo of oil and supplies. Arriving 10 April 1944, at Emirau Island in the Bismarcks, occupied only three weeks earlier, "Hyperion" discharged cargo by day and steamed out to safety at night. She then returned to her valuable work in the staging areas, operating between New Caledonia, Guadalcanal, New Zealand, and the Bismarcks.