The New Letters to Lewis

When you're reading these new letters that have been identified, I mean, I'm assuming you've read a lot of the ones that are already published. Was there something that was like, whoa, you do run into new things, actually? And it's really quite wonderful. Some of the things that we've seen, certainly there are repetitions of things and the like. But today I was reading a letter that Lewis wrote in 1943. That was part of the fun of it is I'm not convinced it was written in 43.