The Guardians Trilogy (abridged)

To celebrate the rise of their new queen, three goddesses of the moon created three stars, one of fire, one of ice, one of water. But then they fell from the sky, putting the fate of all worlds in danger. And now three women and three men join forces to pick up the pieces....

Mermaid Annika is from the sea, and it is there she must return after her quest to find the stars. New to this world, her purity and beauty are nothing less than breathtaking, along with her graceful athleticism, as her five new friends discovered when they retrieved the fire star. Now, through space and time, traveler Sawyer King has brought the guardians to the island of Capri, where the water star is hidden. And as he watches Annika in her element, he finds himself drawn to her joyful spirit.

As the hunt for the Star of Ice leads the six guardians to Ireland, Doyle, the immortal, must face his tragic past. Three centuries ago, he closed off his heart, yet his warrior spirit is still drawn to the wild. And there's no one more familiar with the wild than Riley - and the wolf within her....