Episode 5 - S1.E5

French governess, Mademoiselle, is growing increasingly suspicious of Mrs Appleyard's erratic behavior, and fears the worst when she is told that Sara was unexpectedly collected by her guardian, unseen by any other staff. As Mademoiselle searches for answers, the Sergeant travels to Melbourne to seek a last interview with Irma, and a secret vow made by the missing girls is revealed.