*several brigands leap out*
Just kidding. My clone was reading the Dungeons & Dragons game run by SUE the T-Rex on Twitter, and leaping brigands seem to be a recurring theme.
Spell out numbers: eighteenth, not 18th.
Not every end-of-paragraph sentence needs to — or should — end with an ellipsis. Although it’s probably used here because the example originated as a writing prompt someone posted on Pinterest, I sometimes worry that seeing such endings all the time will lead newbie writers to think that end-of-paragraph sentences are supposed to trail off, regardless of what’s actually being said.
At least it’s a real ellipsis, though.
Your father taught you a strange language when you were young. On your eighteenth birthday, you find out why.