[Search] Find Loot. 25%: Monster returns.
If the monster doesn't return, the % goes up to 50 and then 75. The "monster" is an Elite which can be determined based on the description of what happened to the corpse.
There are only 2 possible payouts: Gold, and a random Relic. If you haven't gotten the Relic, then the Elite will drop it. If you have, then the Elite cannot drop a Relic.
This means that once you get your Relic, you should just leave, as the Elite has nothing to offer you.