Northwest Passage is a sea route through the Arctic Ocean along the northern coast of North America via waterways amidst the Canadia Arctic Archipelago, which connects the Atlantic and Pacific Oceans. The Northwest Passage was frequently sought after by explorers as a possible trade route.
During the late 17th century, Hendrick van der Heul, Captain William Kidd's former quartermaster, sought to uncover the Northwest Passage and sailed to the northern seas of North America. However, Van der Heul's ship, the Octavius, got stuck in ice in the arctic environment, and Van der Heul died on his ship.
In 1776, the Northwest Passage was visited by the Assassin Ratonhnhaké:ton, as part of his search for the map pieces which led to the location of Kidd's hidden treasure. Amidst the arctic wastes, Ratonhnhaké:ton boarded the Octavius; however, after obtaining the map piece from the dead captain's corpse, the ice beneath the ship broke and caused the vessel to sink, forcing Connor to flee.