I opened a hive today and it looked like they were starting to swarm at that moment.They were just coming out and leaving, not after me just leaving. I knew something was wrong. After removing the top box(drawn comb little honey) the second box was 80% honey. the third box was uncapped honey with about 2 or 3 maggots from SHB. forth box was the same but more worms. No brood or eggs. What do I do now? Please help. It looks like they swarmed, about 10 days ago there were 10 times more bees than now. OH, in front of the hive were all the brood and unborn bees.