The Keeper and the Alabaster Chalice — Paige W. Pendleton

The Black Ledge Series, Book II He'd bonded with the child. It was foretold, and so it would be. Black Ledge is inhabited again, but not everyone in the Realm is pleased. As the Driscolls settle into their new home they meet magical Beings, discover secrets, and exasperate the Elven Guard. They're having a great time. Charm turns to alarm when they meet Doris, the Acadian Water Witch, who's removed the Alabaster Chalice from its watery grave. The Noctivagi, drawn by the artifact's Water Magyk, seek the Chalice for their own nefarious purpose, and mayhem ensues. Eleanor, Rob, Jack, and Flora fight time and tide to return the Alabaster Chalice to the Undine Prince before the darkness steals it.