I went into my sole hive yesterday to reverse the boxes and to remove the winter sugar and pollen patty. Because of time and temperature constraints, I was not able to go through the frames completely, but I saw no brood in the few frames I did examing. What I did see, however, concerns me: There was a single queen cell being built on the bottom of the inner cover. Is the colony in trouble? What recommendations do you have for how I proceed from here? If they are queenless, what kind of time constraints am I working under?