Through the Wall by Patricia Wentworth

Martin Brand's relatives are furious that he's left his large estate to his niece, Marion, whom he had only met once. And Marion is upset that she has to share her new home with Martin's family. Then a body is found on the beach wearing her coat. Fortunately Miss Silver is on the scene.

Sisters in Fantasy

A collection of original short stories by acclaimed writers of women's fantasy--including Tanith Lee, Janny Wurts, Sheila Finch, Elizabeth Moon, and Katharine Kerr--features powerful stories of women doing extraordinary, heroic things--with a woman's touch.

 If you like Marion Zimmer Bradley's Sword and Sorceress series or fantasy in general, then you will like this book. The second volum is good too.