The stone 'shall hold in the wrath of flame for all of time until it is required again.' according to the translated book.
And the Vial needs, besides an even more elaborate sigil drawing than the heat stone, an ordinary vial. 'Flesh of the living', 'Bones of the damned', 'life-bearing spark' and a sacrifice of blood of a virgin. Candles will be needed, of course. As well as chanting to 'draw into the vial the one that consumes flesh of imperfection' or something like that. Something might've been lost in translation, or maybe not. Imperfection could've meant wounded too maybe!
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Jon attempts to attack the caged monkey with corrupting blood!
You drag the tip of your pure iron ritualistic blade across your palm, drawing blood as you recall back the horrible, awful times in life. Pulling upon your anger, your hatred and sadness. For a moment there you might even feel silly, since you've grown way past the age of 14 already and the Emo phase was already gone. But you could recall it, and for the sake of !!SCIENCE!! you managed to pretend like the world doesn't understand you again.
It hurts, it felt like your blood was boiling and bubbling in your palm. Remembering the instruction, you throw it as hardest as you can as if throwing a baseball at the monkey, tossing a hissing, bubbling trail of smoky darkening blob of blood that splatters onto the cage and monkey.
The metal bars that was hit hisses violently as rust and imperfection began to eat into it, corroding the affected area while the monkey that was hit went batshit.
It screamed and jumped all over it's cage to escape as it's flesh that got splattered on by blood boiled and bubbled, sick, putrid pockets begin popping up on the affected area while the worst of it rot rapidly and fell off of it in chunks, causing vomit-enduing scent that exploded violently outwards from the critically injured monkey. It's going to need some immediate and modern medical care if it has any chance of surviving, and the chance probably doesn't look good. The rot ate it's way to the bones, effectively making the affected area that of a corpse.
From the smell and the shriek of terror from the monkey, every immediate intern lost their lunch, puking onto the floor, the table and their co-interns as they lost their con-checks before screaming away immediately as they too lost their will-check. Frightened from witnessing Eldritch magic and it's effect.
Jon fails the con roll again and you feel bitter bile coming up your throat.. you could try puking onto one of the other researchers here.. Frazz's just within reach.
Not only does he lost a con roll, he is also at a level 2 fright. shaken from it all, Magic is fucking real! and it's fucked up! AND it's on HIS HAND! though he could've been a lot more fucked if his roll went any worse.
Zander fought back the bile and won, though he's now at a level 1 fright from witnessing Eldritch dark magic and a little shaken, creeped out but is mostly fine.
Tal tries ignoring the smell, and succeed. Forcing the bile back down. His will steeled and didn't get any fright levels.
Frazz lost his Con check, the surprise smell catching him off-guard and the bile is coming up faster than he had anticipated, though it's merely an annoyance since he succeed his will check and isn't all that bothered by the eldritch stuff.