In the season sixteen episode "She", NCIS reopens a ten-year-old cold case when they find the starving daughter of a woman who has been missing for ten years. While digging into the case files, Special Agents Eleanor Bishop and Nick Torres find that Ziva had kept notes on and had been secretly investigating the case after her departure from NCIS. While interviewing the girl's father and woman's boyfriend, he points them to a backyard building that Ziva had rented for years as a private office to write private journals as she coped with her job and life in America, though it hasn't been touched since her apparent death. Bishop tells Gibbs about this, who admits he suspected but warns her not to get personally involved in the case as it could get her killed. After finding the woman alive and arresting her kidnapper, Bishop goes to read a vengeful note from the woman's mother that Ziva had intended to read to the kidnapper, only to find that someone had already read it to him before she arrived. Realizing that Ziva is alive, Bishop runs to her private office only to find a note from Ziva asking her not to reveal her secret for the safety of her family. At the end of the season sixteen finale, "Daughters", Ziva shows up in Gibbs' basement to inform him that he is in danger.