Summer Song has just lost her best friend and tries her best to accept her absence and cope with it, but she simply can't. Satin Sea was her only real friend and the world feels "full of nothing" without her.
Clinging to the solace of her journal, she begins to write, only to find a response one day from a sympathetic stranger. The stranger, a girl named Amelí, tells Summer of a foreign world where she lives, and they soon find that each can see the other's writing in their respective journals. They become pen pals of a sort, and subsequently fast friends as they share their secrets with each other and their friendship grows. Summer can even feel the hole in her heart slowly healing.
But one day, things take a turn for the worse...

(Note: this does involve humans, but is not a Human in Equestria story)
I began this as a way of letting out much of the pain I had been feeling, an idea that came to mind as I was writing a blog post. It's also something of an experiment with writing style and devices, so please leave feedback below, positive or negative, on what you think!
The title is inspired by Ella Wheeler's poem "Solitude", from which comes the famous saying "Laugh, and the world laughs with you. Weep, and you weep alone."
The image is a currently unfinished one by me, cropped and given a dark grey background. If I find the motivation, or if enough people poke me, I may finish it (and perhaps update the cover art as well).

And a special thanks to my pre-readers, Icy Winds (DustyLightning), Selimion, and Cool Breeze for their feedback!