Scorpion Mountain

Hal, his Brotherband crew, and the Ranger Gilan have freed the twelve Araluens sold into slavery. After reaching the Royal Palace, the group is given a mission none of them expect. Princess Cassandra has recently survived an assassination. Now whispers of a second attempt have reached the kingdom, and the deadly sect known as the Scorpion Cult is believed to be the culprit. An assassin who tries to take Cassandra's life gives up vital information on the cult during interrogation. The cult worships the goddess Imrika, and whenever somebody pays them, they make a compact called the tolfah, to kill the person the customer wants.

The crew of the Heron leaves to find the man who paid for the tolfah, Iqbal, brother of Yusal, the Tualaghi chieftain who had held Erak prisoner years ago in Erak's Ransom, but gained permanent mental damage from a head injury delivered by Cassandra and been incarcerated, an event Iqbal is determined to avenge. They bring along the Ranger Gilan to help negotiate with the cult and ensure Cassandra's safety. While sailing they meet an old friend of Gilan's, the wakir Selethen. He tells the crew that Iqbal has taken over a city called Tabork along with a Hellenese man Philip Bloodyhand. Using a surprise takeover of an attack vessel of Philip's, the Herons takeover the city after a bloody fight. They mortally wound Iqbal but find out the tolfah cannot be removed without the death of the Shurmel, the leader of the Scorpion cult. Ulf gets injured and has to stay in the port as the crew moves on to confront the cult.

They sail to the old Toscan colony of Ephesa so Hal and Gilan can go inland to Scorpion Mountain, the headquarters of the cult. There they go inland and find the remnants of an old Roman-style city. Hal notices the constant wind and makes a land-sailer to travel across the desert without a horse. He takes Gilan, himself, and Stig inland to go and see the Shurmel to remove the tolfah. The remaining crew stays to defend against the Ishti, a group of fighters owned by the Scorpion cult. At the mountain the trio is let in with the Scorpions believing that they have come to buy a tolfah. Gilan is upfront and tries to get it removed. The Shurmel is offended and challenges Gilan to a sword fight where the Shurmel is defeated and killed. The trio moves to go back and meets Umar, a leader of the Bedullins who helped to free Erak in Erak's Ransom. He wants to defeat the Scorpion cults and helps defeat the Ishti who were attacking the remaining Heron crew. The Heron crew leave after the battle to Araluen where they are relieved from duty to the kingdom. They sail back to Hallasholm where they meet a feast and are welcomed back into their country.

• Scorpion Mountain at Random House Australia
• Scorpion Mountain at Random House New Zealand
• Scorpion Mountain at Penguin Group (USA)