After Cassie reaches a decision about her future, Middleton needs a touch of her magic when the Lights Festival threatens to go dark.
A dispute about London between Nick and Grace causes Cassie to slow things down with Sam. However, she does tell him that she is not going to join John in the Maldives. While weighing her future options, she explains to Grace about missing her father but loving someone new. Grace knows, after previously seeing Cassie and Sam kiss.
Cassie also has Grace to deliver a letter to John at the festival. The letter is in Sanskrit, which Nick notices and talks with John about students helping him in the Maldives. Abigail's behavior was a ruse to force Martha into becoming more involved in the magical festival that brings the town together, except for Sam who has yet to arrive.