Thankfully we are not all affected as you are.

I think that Pomona's sister-in-law might could be approached. We've been talking about Tilda in this way for some time. She is a good sort and is willing to refrain from asking questions when it's clear she ought not to. Pomona believes we could trust her further than that with our secrets, but I think it better to take things in stages for her safety as much as our own.