When he's on the road during a terrible thunderstorm, gryphon shifter Quint Casteel comes across something completely unexpected. He's never seen a gryphon like the one illuminated by lightning and soaked by the rain, and when he tries to help the shifter, he ends up with a very bedraggled and beautiful man in his arms. Max isn't just a gryphon, he's a brontegriff, which is a mix of a thunderbird and a gryphon. His thunderbird mother has kept him close to her nest in the deep southwest, but when a hard thunderstorm calls him to ride it, Max ends up near Aspen in Quint's territory. And in his circle of protection. Quint knows that Max is meant to be his mate, but will their families agree, or will another kind of storm drive the two of them apart?

Gryphon shifter Marc is back in his home in the LaSalles, working on his charity foundation and trying not to be jealous of his brother Quint, who finally found someone to love after centuries alone. He's so wrapped up in business that it comes as a great shock when an old friend shows up at his home asking for a favor before she dies. Take care of her son, who is one of the rarest shifters in the world. A unigriff. Traian doesn't want to be trouble, but his whole world has been turned upside down. Both of his parents are lost to him, and he's been torn away from his home. The one good thing in the whole mess is meeting Marc, who he knows is special right away. But being part unicorn means everyone wants his magic, and they'll use violence to get it. So he doesn't want to lose Marc as well. When an attack comes to their door, Marc's triplet siblings come to help, and they all face dangers they never believed possible while Marc and Traiain forge a new love. Can they survive the threat to their very existence? The Gryphon's Prize ends with a fully realized romance, but a partial cliffhanger for the final book in the series.

Gryphon shifter and oldest triplet Roman is so happy that his brothers have found their mates, but he hates that their homes have been attacked by forces who want to destroy them and take their magic. So he decides to move both of his brothers and their households to his home in Montana, where they can make a stand. To make things even more complicated, Roman has to deal with a half dragon/ half gryphon that was stranded at his brother's place in Colorado after the last attack. Bastien was bespelled and abused by a mage for a long time, and he has terrible guilt about having to help attack Roman and his family. But Roman gives him home, and when they touch, the spark between them becomes a far bigger flame. But the bad guys moving against them won't wait. Can Roman and Bastien defeat them and still form a mate bond?