The Lament Configuration or Lemarchand's box, is a tool used for creating passages to Hell.
Originally created by a toy maker named Philip Lemarchand, the puzzle box is a masterfully created clockwork creation that plays a haunting melody as someone attempts to open it. Pieces come seamlessly out of it's design and rotate to unlock passages. If one where to attempt to open it in Hell the cube shifts in design to a octahedron and from there reopening it becomes nearly impossible.
Señior Diablo gave these out to the members of the Hell Council and for a time Johnny C was practically stalked by them and distributed them en mass across Pre-Unification Twisted. Since then they've become a rarity but can still be found from time to time for those who know where to look.