Abandoned by Delphi, Albus and Scorpius discover they have been taken back to the night Harry's parents were killed, and assume Delphi is planning to kill Harry before Voldemort can do so. Albus and Scorpius write an invisible message on Harry's baby blanket, knowing in the present, the blanket would become stained with love potion and expose the message to Harry. Meanwhile, Draco reveals the Time-Turner was actually a prototype for a perfected model owned by him, but they remain unable to rescue the boys due to their uncertainty over which time period they have entered.