Leftstar can't seem to access the world they've been building. They also haven't slept in a long time. These things are almost certainly unrelated, and they should really go get the mail, anyway. But their trip to the post office is interrupted by a curious visitor: an enormous fruit bat. Whisked away in the bat's claws, Leftstar is taken on an adventure to unblock the path to their deserted creation. Between bites of pie and words of wisdom, can Leftstar remember the most crucial part of invention?