An adventure for those seeking inspiration, but you can easily flip this PDF to any D&D version or game system. If you need help on conversion, I created this page for such an occasion: Convert Old Dungeons and Dragons Adventures
This scenario can be played as an addition to your current adventure when players are traveling. This D&D game encounter takes place at an abandoned shrine to a forgotten thief, possibly an avatar of some evil, well-known god of thieves. A group of 2-6 characters is recommended, each of 3rd-5th level. A cleric would be extremely helpful, and an assortment of magical weapons is necessary. This scenario may be dropped into an ongoing campaign, as the player characters are traveling along a minor road in a forested region. The time is late in the day.