Really good article, explains every step so well. My girl is an ex bat I think about 5 years old now, she's been at stage 2 for about a week, when I first noticed her being off I took her to the vet who gave her antibiotics but they didn't help. Last night she took herself off and I missed that she wasn't in with the others, this morning she comes out of hiding as soon as I opened my door, how she survived the night I do not know. Tonight I found her, put her in hut, I'm undecided if I should bring her in or not. I've noticed another girl stays with her most of the day, standing near her. They definitely form friendships. I'm hoping she goes peacefully in her sleep.