This are the sea caves that give access to the library. The sea is invested with vampire mermaids. The ancient evil in the library attracts other evil beings, and demons, ghosts and shadows can be encountered deeper into the caves.
This is the library itself, and the crypts under it. The big square hall in the middle is the reading room, where the Player Characters can gain access to many ancient books of power if they find a way to communicate with the undead librarians.
|Click for bigger picture!|
The library is dangerous as well: The water leaking from the caves above is contaminated with the spirits of the dead, and a Xaoclost starts to hunt down the characters through time.