She most certainly is nowhere to be seen now, and I spent as long as I could searching for her yesterday, and again today. I was given a frame of brood today, that is now in there, eggs, larva and new bees emerging from cells, so hopefully it will get a bit busier. I am going to leave well alone for a week now, tho I may check the feed midweek to see what's gone. It has been untouched so far.