I'll ask Red about it. But it was probably then. That's when some Blanks forced their way to the North Block.
Here's what King's doing. Your rations are being increased by a lot-- enough to feed all of you, so you don't have to eat anything that's not given to you. Stay away from the lake and the river completely, and stick to drinking the water in your dorms and bathing in the bath houses. And if you need any extra food even on top of this, you can bring an Ophiuchus or two along to help with a hunt, free of charge.