“The Castle Keepers” is an amazing collaberation of three authors, Aimie K. Runyan, J’nell Ciessielski, and Rachel McMillan describing three time periods 1870, 1917, and 1945 at Leedswick Castle, in England, where the Ainwick family has resided. I am a fan of Aimie K. Runyan’s novels, and I loved her novella taking place in 1870.