Five books about magical families

Christopher Barzak's latest novel is Wonders of the Invisible World. One of five books about magical families he tagged at Tor.com:House of the Spirits by Isabelle Allende

This highly acclaimed novel by the niece (or more specifically, second cousin) of Salvador Allende, former President of Chile (1970-1973), chronicles the lives of several generations of the Trueba and del Valle families.