In 1984, TSR published the module C3: The Lost Island of Castanamir. It was written by Ken Rolston and illustrated by Jeff Easley, and consisted of a 32 page booklet and cover folder containing maps. "The Lost Island of Castanamir" was the third of TSR's competition series of tournament adventures.
This conversion guide allows DMs to run the original module with 5th Edition rules and provides a reference sheet for encounters. It is intended for 5-6 characters of levels 1-2, or 4 characters of level 3.
To use this conversion guide you will need a copy of "C3 The Lost Island of Castanamir".