Later, she and Jin help Claire in catching a bird. When Desmond thwarts their plans, Sun encourages Claire to investigate. The next day, Sun is involved in the investigation of the apparent deaths of Nikki and Paulo. At first, she suspects food poisoning, but later blames the Others, referencing the time she was almost kidnapped. She learns that it was merely a staged act, planned by Sawyer. She threatens that the next grave dug will be his if Jin finds out, and slaps him. She also returns the diamonds he gave her, branding them as worthless on the island. Since then, Sun refuses to speak directly to Sawyer. After Juliet migrates to the camp, Sun demands to know about pregnancy on the island, and is shocked to learn that women die during pregnancy. Juliet takes Sun to the station, where she uses the medical equipment to determine a date of conception; Sun learns that she conceived on the island, making Jin the father, but leaving Sun with less than two months to live before her second trimester.