I inspected Hive A yesterday and saw eggs. So yes, the bees made their own queen. She is mated and is laying eggs. But last night, I thought about my suspicion that I may have set the swarming into motion with my frame swapping the month before (I took a full frame of brood and bees from the middle of the brood super and put it up into the middle of the empty top super to try to encourage the bees to start drawing foundation.) So this morning, I swapped them back. Not sure if THAT was a good idea, as the brood is gone and that frame now is nearly full of uncapped honey.