Map Fragment 23?

[AestheticGamer aka Dusk Golem]

Map Fragment assist question!

Alright, since I don't want to look at every nook and cranny in three different chapters, does anyone know of any map fragment 23 is? I know that it would be between the sections in chapter 11 after the slow tram ride with all the guys throwing fire at you a little before you run into Juli up into Chapter 13 where you enter the hallway with the enemy with explosive bolts attach himself after you evade The Keeper the floor above.

I got the two map fragments at those two points, but I'm missing the map fragment somewhere between those two points.