16 Accords of Madness

 is apparently a sixteen volume set which describes meetings of the Daedric prince Sheogorath with other princes. Known volumes in the set include:


 * 16 Accords of Madness, v.VI
 * 16 Accords of Madness, v.IX
 * 16 Accords of Madness, v.XII

16 Akkorde des Wahnsinns