Eddie makes a shocking discovery about his dad. Fabian translates the message from the envelope. The clues point towards the Gatehouse, but their decision to investigate places Amber in great danger.

As Fabian, Patricia and Alfie search for Amber, KT and Eddie's suspicions about Miss Denby are confirmed. Jerome's sabotage of Mara's business project backfires and Amber learns the adults are planning a mysterious ceremony...

Amber is discovered in the Tank Room and the Sibunas think she's betrayed them all. Eddie and KT are shocked to find a photo of the 'real' Miss Denby but Eddie recognizes her- she's the woman from his vision!