Growing Mushrooms Week 10

Blog readers will remember that 10 weeks ago I sowed a box full of rotted manure with mushroom spawn. Everything was done as the packet instructed, and mushrooms were to be expected after 10-12 weeks. After 2 or 3 weeks there were definite signs of white mould underneath the top soil...
Sadly after 10 weeks there is no sign of anything, not a dicky bird. I am thinking perhaps the garage might be a bit cool, but it is right up against the house wall. I think I will find a place indoors and bring the temperature up a bit. Any advice anyone?

Finally, I have been impressed with the lovely green vigour of my Winter salad leaves, spinach and Swiss Chard. Behind my back however, someone has been giving them an extra nitrogen feed... thanks Buddy!