Mike finds Arthur's letters

I'd picked up the sideboard second hand at one of the charity shops in town - a piece of furniture that would be OK for the short term but probably get ditched in a few years. The way I see it second hand's no more expensive than Ikea, probably better made and buys some smugness points for reuse/recover/recycle and you can't go too far wrong with plain wood. Well, they dropped it off at lunchtime and were kind enough to get it roughly in position in the living room. Looking forward to an afternoon of unpacking a few boxes I decided to give it a bit of a clean an polish first and to address the sticking bottom drawer. I left that to last and filled the air with the smell of furniture polish.
Pulling the bottom drawer out was a bit of a struggle - it wasn't just stiff but there was something caught underneath it that resisted until I worked a thin metal ruler under the drawer to force it down. The drawer came out and the problem was revealed as four letters held together with a faded green ribbon.   Now, I'm probably no more curious than average but these seemed odd - I realised that each was a single sheet of paper that had been folded and sealed with sealing wax, rather than using an envelope. A bit old fashioned, and the paper didn't feel like most paper does. So, curiosity got the better of me and I read on: a curious tale emerged that seemed to be a modern fairy tale of sorts.
Arthur Morgan's first letter
Arthur Morgan's second letter
Arthur Morgan's third letter
I don't know how you'd read it but I was in two minds - possibly a school project in "creative writing" possibly with a few extra craft bits on the side or possibly a joke left by the previous owner before sending the sideboard to charity. That seemed a bit unlikely but you never know - a housemate of mine at university would have loved that sort of joke and had pulled a couple of April fools along similar line, but where's the fun of a hoax when you don't see it being taken?