Tome of Horrors Instant Encounters 1 (5e)
Did your players finish your planned adventure an hour early? Do you need a quick transition scenario to bring the characters up a level before moving on? Tome of Horrors 2020 Instant Encounters are micro-adventures perfect for those need-it-quick situations that always seem to appear. All of them contain the illustrations and stats for the monster featured in the scenario¸ and many of them have maps as well.
Always roll a 20 on your Charisma (Gamemaster) saving throws!