She was ill on Sunday night with a sore front leg and not eating - very sorry for herself, but seemed okay on Monday. She went sometime Tuesday morning. Tuesday was a horrible wet day - she'd normally have come in for a warm sleep.
I'm afraid she's been clipped by a car or had a fight on Sunday (we were out all day) and has gone off somewhere quiet, having not actually been fine on Monday. The only time she's stayed away for longer than 6 hours ish was when she was locked in a garage, but all the garage locking people are on holiday, so their garages haven't been open and I went out tapping on the doors last night like a mad woman to check.
No, not really - although she could be shut in a shed or something. People are out in gardens at this time of year doing leaf raking so might have shut her in by mistake. Have you phoned any local rescue centre/vets etc to see if she's been handed in?