This is a one-shot in square bound, prestige format featuring Merv, the caretaker of Sandman's castle.  This book did not get a huge print run and there are only 4 copies in the CGC census.  With the upcoming Sandman show, this one could get a big bump!  Buy it and send it to CGC!  This book is brand new, unread, and is graded 9.6 NM+ or better.