 During one skip, in "Because You Left", Alpert tracked down Locke, who had been wounded in the last skip, and treated a bullet hole in his leg.He gave Locke the compass which Locke would give Alpert himself in 1954, and told Locke the only way to save the island was to get the Oceanic Six, the six survivors who left the island, to return.When Locke asked how he could do this, Alpert responded Locke would have to die.