I’d love to know what poison they used on the darts. Plant or animal origin?
Also, why did they leave the kit there? Being hunted by someone or something else and had to get out fast?
Probably just died. Everyone leaves behind a bunch of things unfinished.
[...why did they leave the kit there?]
Dad told kids not to touch his hunting gear. Kids took kit to back of cave, then forgot to get it after being called to dinner for the third time.