Great, functional transportation item. I wonder, though, if the ruby heart is magically stuck to the door, how does the user retrieve it? After closing the door, the heart could be thousands of miles away. That might make for some interesting twistiness.
I'm enamored of the first sentence. "The Ruby Heart is the fastest way to get home," is perfectly succicinct, and has that folksy fairy-tale ring to it that I love.
You've managed to make the battery novel, not an easy task.
I could see them used as an auxilliary battery in starships, something equivalent to having a second battery in your car to power just the lights. Although, in the case of spacefaring, it would be better served as life support. The incredibly long lifespan would mean that even used-spaceship buyers wouldn't have to worry about replacing them.
I like the idea of challenging yourself to do a post in 100 words, and you did so beautifully here. You've given us the perfect amount of information to want, and therefore create more.
I'm especially enamored of the idea that Dwarves hate the Hemangini. A religious taboo I'd think, a direct opposition to the convenience of the thing. Metal, after all, takes an intense amount of labor and man-hours to mine, and the process is notoriously lethal. If one can simply pluck a metal nut from a tree, what does that say about all the ancestors who languished and died in the mines? Are their souls no longer worth anything? Better to just destroy the plant.
It's also a wonderful explanaition of why especially hippy-dippy elves might be in possession of metal tools and weapons despite mines having a bad habit of killing or displacing life in the area.
A great post is detailed. A great post flows smoothly and is well-written. A great post is full of background, but easily lifted from its context and placed in a new setting. A great post has me crook-necked over my computer for the entire duration of my reading it, regardless of length. A great post gets a 5/5.
This is a great post.
The names immidiately made me think of Battletech, and then about half-way through, I realized I was reading a Battletech post. This is a great example of something that fits perfectly within a pre-existing setting.