An alchemist barely escapes an encouter with Ravoros

A cambion alchemist, Sarri, enters an abandoned laboratory looking for rare ingredients. There, he finds a small, seemingly furry black creature with glowing white eyes. Intrigued, he attempts to capture it, only to find that it morphs into a tentacled mass of shadows - the Great Beast Ravoros.
  Sarri manages to throw Ravoros off by igniting flammable powder nearby and then running while it is distracted.