Well, I went to the Yorkshire Dales for a couple of days and left a friend to look after the greenhouse as its been so hot. She did a good job and all was well, except for the other greenhouse on a friends plot where I had put a few plants as I ran out of space. All my plants from potato seed are toasted brown as well as most of my cabbages which would have been fine if I'd just put them outside. Lots of young squash and cucumbers were lightly crisped, but look like they will recover. The sweetcorn seemed to like it though as did the okra and sweet potato. I just can't work out why I forgot about the second greenhouse. Maybe the sun got to me as well?