Like the others, it was text book stuff. They've never done this before, yet they absolutely know what to do.
She eased herself out of her chrysalis, zipped the two halves of her proboscis together (if they don't do this they can't feed), hung down her wings to dry. As time passed she became more lively and started to move around a little. I set the foam pad she was settled on, outside under cover and left her to it. It's been raining for several days however experience has taught me that once a Monarch butterfly has dried it's wings and is ready to go, it just wants to go.
The rain started stopped, started stopped, just lightly, and before long she flew up into a nearby bush. After a while we saw her flying about the garden beautifully. Once you see them do a long glide through the air, you know they fine, and we saw our girl do several long glides - even in the rain.