In 1984, TSR published the module UK4: When a Star Falls. It was written by Graeme Morris and illustrated by Jeremy Goodwin. This 32-page booklet had two outer folders containing maps.
This conversion guide allows DMs to run the original module with 5th Edition rules and provides a reference sheet for encounters, traps, and treasures.
To use this conversion guide you will need a copy of "UK4 When a Star Falls".