A Reply Sent to Sister (Undated)

Dearest Anna,
You've never seen a forest like it! The trees are so tall they seem to tear the sky open, and the fog is so thick it clings to your face like cream. The Pioneer Bureau calls it the Slumberdream Valley. Me... I think it's more like a place that just swallows people's sleep.
You'll definitely laugh—I actually dozed off while I was lost in there! When I woke up, I was covered in a cold sweat. I'd just dreamed that the tree roots were moving, as if they were about to entangle me.
But don't worry, I got out of there with a cool head and a bit of luck. It's just that the feeling of the nightmare seems to stick in my head even after waking up. I can't shake it off.
Ah, speaking of which, I have to admit... I haven't dared to tell anyone else about this. I'm afraid they'd laugh at me for being a coward.
You'd better not laugh at me. By the way, if I can really overcome all this, that counts as part of my training as an adventurer, right?

Your brother,
Federico, who's trying to be more reliable