Haahaa egg in an egg question answer for you. The first eggs was laid internally "peritonitis" but was to small to pass and or she was confused as to wear to lay it safely or she may have been confused about what exactly was going on inside. The second "normal sized" embryo was release and dropped down plunging the the first "complete" egg through the second embryo and then a shell formed around them both as it's second to last step in the egg laying process. The last step being the distribution of the bloom. I also read your post about Dry Pox, and wanted make sure you knew about the permithrin dust. It's derived from the chrysanthemum flower and it's the same active ingredient in seven dust. I dust my yard garden pen and the birds themselves with it. The only place I don't use it is in the nesting boxes. It keeps the mosquito and fly population down, plus it kills mites, fleas and lice. I do spread it more regularly in the rainy season but it can be watered down and used as a spray also, so the rain just soaks it into the soil and or bedding if your pen does get any blow in rain. I know it doesn't sound too environmentally friendly, but it's only synthetically made to be mass produced, and from a natural source. I would antibiotic them myself, and a regiment of vitamins especially if they aren't laying eggs yet. Four days on and four days off for three cycles. I put the antibiotic solution in their food so they I am sure they get the proper dosage a day.