Been a while since I posted anything proper, but here's an idea regarding this 'adventurer':
For whatever reason, they look female to me. A female 'adventurer' in the early 20th century that's particularly noteworthy is Amelia Earhart, an aviator known for being the first female aviator to do a solo-flight across the Atlantic. She went missing in an attempt to fly across the globe. And what happened to people that are in the Constant? They disappeared.
While it admittedly is a stretch, she does fit the profile of this new character. A globetrotting adventurer that found herself in a world in the sky, now lost and alone after her aircraft crashed. It fits the theme. The floating lands of the Hamlet and the aviation she occupied herself with. Now, of course it's not going to be straight-up Earhart, if at all, but rather an 'Don't Starve-ified' version of her. No idea what her perks would be, though.
my, this got so many likes