There are a lot of fun creature and character encounters spread across the swamp and waiting in the random encounter table that really reward exploration. There's also this video-gamey crystal collection through-line that ties the different "quests" together and makes it feel really runnable. For being a pretty compact crawl, I could see groups enjoying a lot of time on this swamp.
The art really takes it all to the next level, setting tone really well and making the place come to life.
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