Hans-Peter and Thea head to find Mark after Thea senses he is in trouble, but the Horselords send Antonio to bring them back. Mark is chased by the Stormers after he goes looking for Jacqui and Karl. He hides with a boy called The Hawk in his treehouse the Hawknest.

Mark gets The Hawk back to the Hawksnest and makes contact with Thea via the morsecode. Thea makes a trap to catch the person stealing the food, but instead find a secret passage which leads outside.

Jim gives Mark warning about the fruit and gives him directions to Skull Rock, warning him to beware of The Brotherhood. Juanita is the mysterious vistor who has been stealing food and she agrees to help Antonio, Hans-Peter and Thea to fight the Stormers if they will help her free her brother Tomas.

Maria tells Mark and The Hawk that she is the Storm Child and is very important to the Stormers. The castle comes under attack by Stormers and Tomas is rescued and returns to the Hidden Villages with his sister Juanita. Tempus' true identity is revealed as being Dante to Hans-Peter, Thea and Antonio.

Hans-Peter escapes from Dante and rescues Danni. Ogvat is bought in by the Stormers to bring back Maria. Maria leads Dante to the Hawksnest where Mark is.

Antonio is to be sacrificed to the smiting and he must follow Mark's instructions if he is to survive. Hans-Peter and Danni are re-united with Mark. They find the Fruit of Good and Evil but there is not enough to save two lives.

Thea is spared from being sacrificed by the Stormers because she had passed through the Malstrom. The Brotherhood meet up with Dante. Mark is re-united with Danni, Hans-Peter, Maria and Antonio.

Mark, Maria and Hans-Peter find a cave behind a waterfall which contains belongings of the original pirates who came to the Island. Dante bargains for his life again, and promises to get The Brotherhood off the island. The Old Ones and Sally and Paul are now hostages of The Brotherhood.

Ogvat finds Maria and agrees to help her. Mark and Hans-Peter discover how to make the Malstrom part in order to have a safe passage through. Thea remembers everything, including her brother Jim.