Outside, it is a dark and stormy night. You made sure of that by putting the wind machine on its highest setting. You wait invisibly looking at your earlier self reading. When the wind causes the limb to fall, you watch your earlier self go to the window. And also to the door. You manipulate the window alternatives so he hears your warning about cycles, then ends up in the maze. The outdoor alternatives can bring him into the maze, but also to three fatal branches where you lose him. Still, you know that some of him will get through the maze, since you are standing there as proof. You get him into the large storeroom. To preserve yourself, you urge him to go on into the next room. You step into the mirror, and you stare intently at him as he makes up his mind what to do. He leaves, to become you. You wonder if real success would be not his becoming you but the two endings where he leaves the story. When he becomes you, the story cycles and now at the end you are left inside the mirror with no narrative to follow. You turn away and begin to examine the inside of your mirror prison. Suddenly, in the difference between front and back, you find a hidden link.

You follow the link.

You return to the maze.

Would "you" have done better to stay in the big storeroom and take the ADVENTURE elves ending?

At least in terms of getting out of the cycle and beyond the mirror closure.

What's that supposed to mean for the "message" of the story?

The story is supposed to let the two of us discuss the various ways stories and meta-stories interact. The ending with the ghost trapped in the mirror at least has the character aware of the cycle. The escape with the ADVENTURE elves avoids the cycle but also avoids the self-awareness.

The ghost is refusing to stay in the mirror.

But we've left it no place to go within the story.