I went out early this morning to check on Lucy, Ethel, and Dorothy and they were all dead! Laying just like Rosie was! When I checked on them last night (at about 8:30p) they were FINE! I don't understand. I can't think of anything that could have done this. I am just so heartbroken. I'd dreamed of having chickens for years and I loved them to pieces. There was just no sign of anything being wrong.