The nucs I got Saturday had three frames but they were in a five-frame box. One of the nucs had large pieces of comb built in the box not on the frames. (Note: It was pouring rain when I installed the nucs, so I didn't spend much time looking at what was going into the hives.) I set the pieces of comb under the hive thinking that the bees on the comb would go into the hive. But there was a great big piece of comb that was covered with bees. I didn't see a queen on it, but that doesn't mean she wasn't on there. So instead of the 8th frame, I just put that big piece of comb in the hive next to the 7th frame. I looked at it yesterday, and it still had bees all over it, plus they had started building weird looking burr comb in the space for the extra hive. I got some tongs and pulled out all the comb and put it in front of the hive to see if they would go in (it was sunny and in the 70s). After a while, the comb was still covered in bees. So I assume there is brood in that big piece of comb. So, I put an inner cover on the hive and put the piece of comb on top of the inner cover, but under the top feeder, hoping that the bees would realize they need to be down in the combs, and just in case the queen was there, maybe she'd go down into the hive. I've really been trying to not disturb the hive until their settled in a bit. I was planning on doing a complete inspection on all four hives on Monday. I'm really perplexed about this piece of comb. I didn't see any eggs or brood in it, but it was covered in bees and it was so soft, I was afraid if I tried to shake off the bees, the comb would break. I'm also very paranoid about killing or losing the queen. Will the bees go from the inner cover into the hive? should I have tried something else?