From the Recovered Notebooks of an Unknown Explorer

Day 3. Or is it Day 5? I am afraid I have lost track. 

I followed the moonlit path too far, too fast. I followed it to the edge of the horizon, leaped over the edge, and now there is no looking back. I am lost in the vast abyss between this world and the Other Side of Moonlight, too far from the safe embrace of the Aspen trees, too far to hear the echoes of my own voice. I am not afraid of the darkness, but this place isn’t as devoid of life as you would think. Bioluminescent creatures make constellations and wrinkled patterns of shadows and light. Unfamiliar forms seep out of tiny crevices in the fabric that both separates and holds our worlds together, darting behind giant clouds of mist, swimming in air so thick they could almost walk.

What kinds of creatures are these -- the ones that dwell deep in the cracks and voids of the In-Between? I have seen some of them before, hiding in the pages of books in dark, forgotten corners of the library. Judging by the horrific wailing coming my way, my presence has been detected by a clew of voracious velociworms, and if I don’t think fast, I’m likely to become their next meal.

I reach into my pockets, hoping their contents will offer some defense. I find a spool of wire, a miniature thumb piano, and a ballpoint pen. Not exactly the tools I was hoping for, but they’ll have to do. Which weapon should I choose?