The Silver Bowl — Diane Stanley

Unwanted at home, Molly goes to work for the king of Westria as a humble scullery maid. She arrives at the castle with no education, no manners, and a very disturbing secret: She sees visions, and those visions always come true.
One day, while she's working in the king's great hall, young Prince Alaric passes by. Molly finds him unbearably handsome -- but also unbearably rude. But what does it really matter? She'll probably never see him again.
In time Molly is promoted to polishing silver and is given a priceless royal treasure to work on: the king's great ceremonial hand basin. But there's something odd about it. The silver warms to her touch, a voice commands her to watch and listen, and then the visions appear. They tell the story of a dreaded curse that has stalked the royal family for years. There have already been deaths; soon there will be more.
As tragedy after tragedy strikes the royal family, Molly can't help but wonder: Will the beautiful Alaric be next? Together with her friends Tobias and Winifred, Molly must protect the prince and destroy the curse. Could a less likely champion be found to save the kingdom of Westria?