OK - I have a hive that is bewildering. This hive swarmed early June. Since then I haven't seen any sign of a queen (no eggs...). Twice I've put frames of fresh eggs in the hive. They tend to the brood but do not build a queen cell. I've also tried introducing a purchased queen (in a cage using the 'standard' wait time for her to be releases). Is it possible there's a queen in there but not laying? My next step is to shake all the bees in a box with a queen excluder below and see if there is a queen. Anyone run into this situation? Note, I DO NOT have a laying worker as there is NO sign of eggs.