“ The PCs see a large oak tree, a curious species of yellow and black butterflies swarm around it. Upon further inspection they find that the tree is hollow and that there is an underground cave in it from which the butterflies appear. Will they inspect this strange cave?”
“ Nearby is a region of many curiously shaped hillocks. Last week a tremendous storm washed one of these half away, revealing a strange shed made of concrete panels. Its long side is aligned east-west, about 4m by 3m and 2.5m high, with a flat roof slightly sloped down to the north . The double doors in the south side have murky glass panels in them, but nothing much can be seen from outside, although it looks a bit like the top of a staircase. Will you dare go inside? What will you find there, and what lies below?”
“ Real World: some Indians in the Amazon treat their eyes with a traditional potion applied with palm leaves. Brutally painful, the drug alters vision, giving the jungle's dense green walls greater texture and dimension. You could adapt this to desert or swamps, or other hard to navigate regions.”