The cheats nuts

I found it on the ground and it looked like a shell. So I picked it up and brought it to school.

After school I took it home and cracked it open. When I cracked it open inside of it looked like

a giant seed but smelt yucky. Also felt hard and little bit soft. It had black stripes . It looked liked

It was in a blanket that's round. I also noticed that they have different sises. Some were big large and smal all of them had spikes. So if you tripped on something it would probably be a cheats nut. The colour was a carimal colour but with black on top.