A One-Round Living Greyhawk Introductory Adventure
From the introduction:
A ship has been lost on the river. A journey into the Gnarley Forest is dangerous enough, but with orcs seen prowling the woods, adventurers must be wary at all times. Adventurers need to be hired to help recover the cargo before all is lost forever, beneath the waves of the Nyr Dyv. Make it through the woods, brave the river, and bring the cargo back to Dyvers and you will be rewarded.
For 1st level characters.