We actually did a one-short adventure in a single session!
I mean, it’s designed to last an hour for four players and two players did it in just under two, but…
Session 6: Call of Cthulhu: The Necropolis: It’s just a buried tomb in the Valley of the Kings. What could go wrong?
Session 7: Call of Cthulhu: What’s In the Cellar?: Look in the cellar, they said. Find exculpatory evidence, they said.
Session 8: Call of Cthulhu: The Dead Boarder: Just what was that nice Mr Gardiner up to?
(These last three are all in Gateways to Terror, by the way.)
Session 9: Call of Cthulhu: The Haunting: Roger had never played this classic scenario…
Session 10: Cthulhu Eternal: The Haunter of the Darkest Hour: A playtest for this WWII adventure.
Session 11: Cthulhu Eternal: The White War: On the Dolomites in 1916. There are worse places.
Adventure pwyw on DriveThruRPG.