Naphtha

Distilled from Swamp Tar and Charcoal.

Once known as "thick water", naptha is liquid fire in waiting. It takes little to bring this substance to ignition, even too bright a sunny day can bring the raging flame from within.

As such, this material is widely sought by anyone with a strong desire to set things aflame. Pyromaniacs, alchemists and dragon cultists alike yearn for this liquid.