CM3: Sabre River is a 1984 adventure module for the Dungeons & Dragons roleplaying game. It is compatible with Expert or Companion D&D, or Basic Fantasy RPG and other retroclones.
A mysterious curse has hit a barony in the realm of Norwold: The waters of the Sabre River have been tainted, bringing death or evilness to all who drink from them. The player characters are charged to seek out the source of this curse, in the company of Cutter, a young boy who is strangely immune to the effects of the curse. In fact, Cutter plays a more vital role in the restoring of Sabre River than one would expect.