Free OSR Adventure - The Tavern Of Daednu By The Oliver Brothers For Your Old School Campaigns

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Everything about the Tavern of Daednu is well done and very interesting. This is a small twenty page module that is big on encounters and if done well could well be a first rate horror style introduction adventure. The module paces itself well and solid.
With a bit of work this module could be adapted into a solid location adventure into your old school campaigns. Everything about this module screams add me into your game. Since this is an AD&D 1st edition module, you can easily add it right in. The plot and NPC's here are very generic but with a few clever twists this module can be a party's introduction into the darkness that lays at the heart of your horror or weird sword and sorcery campaign.

According to the Dragon's foot intro: 

The Tavern of Daednu seems a pleasant place for adventurers to spend the night, but all is not as it seems. A short adventure for character levels 1-3.
According to the adventure the structure for the module is laid right out in the open from the  introduction: 

"The Tavern of Daednu is a short

adventure for 3-8 characters of 1st-3rd

level. The scenario works best with

characters of low level who are veteran

players. They will of course be suspicious."

Don't let this fool you as a DM, with a bit of work this module could make a fine introduction adventure for a Lamentations of The Flame Princess game or a even a game of Astonishing Swordsmen and Sorcerers of Hyperborea. The weird adventure elements here are compelling enough to keep PC's interested and busy from the ground up.
The adventure reminds me of Solomon Kane and some of the older Weird Tale influences here and I like the feel that I got from this one reading through it a few times. 

There are two levels to the inn and with a bit of clever slight of hand this adventure location can be used over and over. The writing here is interesting, the plot can be reused a couple of times, and personally I think that  the PC's should escape with their lives with this one. Only to have the place show up again later on in their adventuring careers. This is the sort of adventure location where adventurers should cut their teeth and be thrust into the darkness only to escape knowing that its waiting for them.
Grab this adventure, twist it around, and drop it into your campaign for a sword and sorcery twist on the usual basic AD&D game module.