It's cloudy and it will be dark by half-past four.

I'll call to Micah at half-past three and he will pass the word along to the next man and he to the next and so on until all have been notified.

Then we will immediately come together and return to camp, that is, of course, if we have not already found the cache.

If before that time anyone finds what he thinks may be the rock he will pass the word to his neighbour, and we'll close in and make our search together.

If it begins to snow, and the snow is too thick for us to see our next neighbour, we'll close in, for in that case we would miss the rock anyway.