Key of Light / Nora Roberts.

Roberts, Nora. (Author). Copyright Paperback Collection (Library of Congress) (Added Author).

Summary:

Malory Price's life plan has hit a snag. She's in danger of losing her job managing an art gallery in Pleasant Valley, Pennsylvania. A welcome distraction comes in the form of an invitation to a cocktail party at Warrior's Peak, an infamous estate overlooking the town. But no one else she knows has been invited. There are only two other guests: Dana Steele, a librarian, and Zoe McCourt, a single mother. On the surface, it seems the women have nothing in common, until their mysterious hosts tell them a story -- and offer them a challenge. Legend has it that the souls of three demigoddesses -- one an artist, one a bard, and one a warrior -- have been locked in a box that has three keys. Now it's up to Malory and the others to find the keys. Their reward: a million dollars each. It all seems too bizarre to be true. But none of them can ignore the financial windfall they stand to gain. And now Malory -- with her soul of an artist and eye for beauty -- must find her key first. She soon discovers that whatever locked the souls away is dark, powerful, and greedy... and it doesn't want the women to win.