Siren's Song - The Gray Court, #5

Two souls blend in perfect harmony. The Gray Court Book 5Oberon has lost his memory. Wandering and lost, he finds himself trusting a woman who makes his heart race and his palms sweat. He has no idea why he's so drawn to her turquoise eyes and beautiful voice, but he knows she's the only one who can save him. Cassie has troubles of her own, but all of that is overshadowed by the knowledge that the High King is her truebond, the one man born to be hers.
Restoring his memory is sure to end their time together, but Cassie can't imagine a world without the High King. She'll sacrifice anything to give him back what he's lost. Oberon is horrified by the sacrifice his bondmate willingly makes and swears to protect what is his. Beset by enemies, chased and attacked, he'll keep Cassie safe or die trying. But Oberon's death isn't what his enemies seek, and when Oberon returns to his rightful place in the Court with his new Queen by his side all hell breaks loose.
When Cassie's life is threatened, the fae world will bow before the High King or pay the price in blood.