Requiem (Psalms of Isaak, Vol. 4) : The fourth book in The Psalms of Isaak, Requiem. Who is the Crimson Empress, and what does her conquest of the Named Lands really mean? Who holds the keys to the Moon Wizard's Tower? The plots within plots are expanding as the characters seek their way out of the maze of intrigue. The world is expanding as they discover lands beyond their previous carefully controlled knowledge. Hidden truths reveal even deeper truths, and nothing is as it seemed to be.