Harry/Cassandra
I can't give you the power not to know but I can give you the power not to tell us.
I find that the last resort is rarely the last resort. Unless someone is taking their last breath, there's still time.
The greenhouse were perfectly kept although they are all potions ingredients. The house-elves have been taking care of that. What we can do is create new ones for vegetables. Oh and there are CHICKENS. I have no idea where the house-elves got them. I guess from people who were dying and came here. It's how we've sustained our food supplies.