Puzzle for Players, by Patrick Quentin

 Mysterious Press/Open Road, 2018originally published 1938kindle version294 ppMoving on to book #17 on the Séptimo Círculo list,  I actually thought I would die of old age before getting through this one.  It is the rare book that tries my patience, but that's exactly what happened here.  The saving grace for me was that not only did I never guess the who, but when all was made known, it was