Thanks so much for playing and rating!
Each journal has two versions, an innocent and a guilty one. In each playthrough, one of the five journals will randomly be designated to display the guilty version. After you read the guilty journal, you get the notification that it's time to evacuate. When you reach the loading bay, you get a little dialog with the pilot, and the Replay and Main Menu buttons pop up. Unfortunately, I didn't have time to implement a proper ending to the game.
I can see that this element of the game ended up being a lot more confusing than I intended. I'll make an effort to make it clearer in a post-jam build (a "definitive edition," if you will), and to implement a proper ending screen.