Pirates of the Silver Coast

In this fifth book in the Three Thieves series of graphic novels, Dessa convinces the smuggler Quinn to transport her, Topper and Fisk to the mysterious Island of Astaroth. Dessa is convinced her twin brother, Jared, who was abducted years earlier by the Queen's chamberlain, is being held on the island. However, soon after setting sail, they are overtaken by a pirate ship commanded by the King of Pirates, whom they discover is interested in only one treasure on board: Dessa's map to the location of Astaroth! Will Dessa's plan for finding her brother be thwarted? Meanwhile, Captain Drake, still hot on the trail of Dessa and her cohorts, is startled when he comes face-to-face with a young boy delivering him a new horse. Why does the boy look so shockingly familiar?