Dragontide's Revenge. Dragontide, #3

Eighteen-year-old dragon trainer Pryce Harper-Green must forge a dangerous alliance with his former enemies when Corsair raiders threaten Crystal Shores-but the Dragonkin's offer of protection comes with a deadly price that could destroy everything he's fought to save. Six months ago, Pryce Harper-Green helped save Crystal Shores from Dragonkin invasion. Now the scaled warriors have returned-not as conquerors, but as unexpected allies. When black-sailed Corsair ships appear on Lake Dragontide's horizon, eighteen-year-old Pryce finds himself thrust into leadership as the village's last line of defense.
With his parents summoned away on urgent diplomatic missions and the Oceanrider fleet trapped at distant ports, Crystal Shores stands defenseless against the approaching raiders. Queen Nymeria of the Dragonkin offers salvation: her warships and dragon riders will protect the village in exchange for a formal alliance sealed by marriage between Pryce and her daughter, Princess Seren. Desperate to save his people, Pryce accepts the bargain, even though he still bears the scales from his last encounter with Dragonkin magic. Some bonds are forged in battle.
Others are written in blood, tested by betrayal, and proven by sacrifice. The thrilling conclusion to the Dragontide trilogy, where young heroes discover that the greatest victories require not just courage, but the wisdom to unite former enemies against the darkness that threatens to consume them all.