(after big explosions of weird gas happened everywhere the gas turned many into zombies, the gas is gone but zombies, remain)

it’s day 30 of you fending for yourself, you’ve learnt the basics of survival, your on top of a tall tree in a safe space from zombies when you see…

a boy? a boy around your age (your like a kid/teen) and he’s running from zombies, you do have some rope..do you help him? he could be useful??