Sorry for not replying earlier, but just seen the posts.
No they were stone cold and possibly had been for about a day when I went to check so nothing doing unfortunately.
I’ve not got an incubator (as I would probably be divorced after hatching several hundred “let’s see what happens” eggs against the better advice of my wife”), could have done to see if they were OK.
I think she got bored, she’d been broody for about a month before I put her on, but holiday planning (in-laws looking after some chicks + hens + sheep + cats :0 ) meant I put it off for a while and she just got fed up.
Got another one sitting on 4 eggs now (down from 8 to 4 that she cracked after 3 days), so might get some this year after all.