Autumn?

Whew, what a scorcher! Spent most of the day in the garden, and was pleased that I got our planters done - they had to wait till we came back from holiday, for obvious reasons.
Around 2:30 the sky went very dark and there rumblings of thunder and a few drops of rain. Just as the recriminations began (my fault for planning a barbecue, Mr PB's fault for putting out his washing) the sun came out, and the whole area turned into a gigantic sauna.
Mr PB found this tiny mushroom (almost certainly an inkcap) growing on the top of an insect hotel he constructed last year.