That opening letter builds the whole mood in one paragraph. Parchment, serif type, hand drawn signature from the Chairdragon, and a tone that's bureaucratic and threatening at the same time. The previous Keeper going missing, "this is unacceptable", then "try not to break anything". Corporate horror with dragons is a great framing.
And the premise is pure archiving: find the letters, identify each egg, file it where it belongs. In a jam about preservation, a game whose actual mechanic is cataloguing a collection is a beautiful pick. Credit for putting the transparency note right on the page too.
My problem: I couldn't get past the letter. The big red X in the corner didn't respond to single or double click. I tried scrolling around in case the hitbox was offset, nothing. I think it's the issue a lot of entries here have, the game window is wider than the screen (there's a horizontal scrollbar at the bottom), so the X's clickable area is probably not where it's drawn. Making the canvas scale to the window would likely fix it by itself.
Ping me if you patch it, I'd like to actually play this one.