It's a bit like a treasure hunt isn't it, got a copy of the email as well.
Solitary trees exposed to all weathers are mostly hawthorn on moors and high places, gaunt and silvered with lichen they are beautiful.
Ah, treasure. While we're hiking, I'll tell the legend of my mother and her speaking of "treaaaaaaaaa-sure."
For some reason, "gaunt and silvered" reminds me, of me! Okay, get the hiking boots oiled and limber.