In 1981, TSR published the module D3: Vault of the Drow. It was written by Gary Gygax and illustrated by David C. Sutherland III, David A. Trampier, Jeff Dee, David S. La Force, and Erol Otus. It consisted of a 32 page booklet and cover folder containing maps.
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 at least 6 characters of levels 13-15
To use this conversion guide you will need a copy of "D3 Vault of the Drow".