Mondragon Keep
This is an adventure for five or six OSR/D20 player-characters who have reached fifth through seventh level. Characters who have gone through the "OSRUnder the Abandoned Monastery" adventure and one or more of the adventures that precede it would be suitable. It is also possible to create characters at a suitable level.
Mondragon is pronounced MONdguhgone¸ the first and last syllables nearly rhyme¸