When i first started playing D&D i was a life cleric. We were sent to find who had been stealing odds and ends around town. After a few late nights we discovered a small family of kobalds who were lost from their tribe stealing things to make a home. Stuff like fishing lines, a small boat, cutlery, etc. Well knowing that the town would hunt down the kobalds we devised a plan to convince a drunk sailor to offer fish to the "sea gods" at a specific place and time each day. We then got the butcher to give us some pork bones and our party travelled in the opposite direction for a day. We found a small clearing where we devised a plan to fake an attack with blood splatters from local wildlife and guided bolt markings on trees and the ground. We then dug shallow graves and placed the pig bones inside so wildlife would dig up and scramble the graves. Returning to town we convinced them that the creatures were found and were killed. What was meant to be an attack on a burrow(1 session) turned into a caper of faking a crime scene(4 sessions).