The adults are on the Sibunas' tail, looking for their second sinner. Patricia plans to tell Eddie how she really feels about him, little knowing that Victor and Denby have trapped him in the crypt.
The Sibunas find Frobisher apparently dead – were they wrong all along? Jerome is humiliated in front of the class during the "singing competition". Victor visits the Gatehouse and is captured by Frobisher as his first sinner.
Denby and Frobisher kidnap Willow but dismay at her inability to sin. Patricia plans to captures KT by offering to help clear her name. Jerome and Joy share a kiss - Mara's plan is backfiring?
The Sibunas uncover the details of the secret ceremony in a very special place. They rush to rescue Harriet Denby, but discover she's gone. Jerome's love life is in a tangle.
Joy agrees to Mara's ultimate revenge plot – to break Jerome's heart. Meanwhile Mara discovers she is 2nd in line to inherit a Lord's estate. Eddie escapes the crypt and the Sibunas puzzle over how to unlock a mysterious capsule.
