I find a safe space behind a small hill, where I can just about see the crater.

I watch as worm-like creatures slowly emerge. They're bigger than humans - about the size of a bear - but they seem to have difficulty moving. They must be used the lower gravity on Mars. So moving on Erath must be like a human carrying three or four times his own weight.

By now there is a crowd of people watching. They're pushing each other for a closer look. Somebody has fallen into the crater!

Should I try to help him? Or should I stay here where it's safe? Or do something else?