She's still hanging in there (egg came off first night after a couple of hours of soaking). Trying to keep it clean and moist. She's not suffering and I won't let her. Going with keeping her in the dark and food only at night. Has water with electrolytes 24/7. I'm curious on the calcium aspect in prevention? She was on organic Blue Seal layer pellets when this happened and had been on layer pellets since July. I don't know what she was laying before - have several Buff's and never caught her with an egg so don't know which were hers. Was a decent sized egg she had attached but not big like the red sex link eggs who are a week or two younger than she is. Will keep persevering with her as long as she's not suffering. She's one of the few who is a family pet so we don't care if she ever lays another egg as long as she's fine. She has a fabulous disposition and loves being held - always has.