Ralestone Luck by Andre Norton, Fiction, Fantasy, Historical, Action & Adventure 12+

📙 Amongst these treasures is rumored to include an ancestral sword, The Luck, which will return them to their prvious glory. But as they get closer to finding this hidden treasure, another man has come to claim the ancestral home. A man who says that he is the rightful heir from another branch of the family. Rupurt, Richanda and Valerius must now find proof of their ownership or lose everything -- Pirate's Haven . . . and any chance they may have for the future.Andre Norton wrote more an a hundred novels. She was noted for having found success through writing young adult and children's stories. She was the first woman to have been awarded Gandalf Grand Master of Fantasy and the Nebula Grand Master Awards.