Fire Essence

I’m currently researching fire elementals, and I am one step away from a tremendous scientific discovery! Unfortunately, I’m running out of test samples, so my great discovery is postponed for an indefinite time.
I’m a scientist, not a fighter, so I cannot enter the Fiery cave and cut flaming hearts out of fire elementals myself. I will be much obliged if you bring me more of those.

Have you brought the samples yet? Hurry, I can’t wait to go on with the research.

That’s what I call burning hot! I’m sure these will be enough to complete my studies. Or not... Just in case, can I count upon your further support? Oh, thank you!