This short but intense chapter sees you navigating Drake down a raging river using the Vita’s tilt controls to control his direction. Hit too many of the rocks protruding into the river and it’s game over. You will need quick reflexes here; keep one hand hovering over the right side of the Vita’s screen and be prepared to tap it quickly when you pass by a treasure, of which there are many in this short section. Stick to the left side of the river to pick up a treasure on a rock not far down the river’s path. Keep navigating down the river and you will see Drake fall off of a small waterfall, only to continue down the river. After he falls, stick to the right bank to grab another treasure.

After grabbing this treasure on the right, guide Drake back over to the left side of the screen. Watch out for rocks, but be sure to stay towards the left, as another treasure will be coming up on a rock here soon. Grab it when you pass it. Dodge two rocks and go back to hugging the left side of the river. Yet another treasure will be hidden on a rock here. After grabbing this treasure, just focus on dodging the rocks, and they start to become more prevalent and there are no more treasures to grab from the river’s banks. Soon you will be thrown off of a waterfall, a bigger one this time, and Drake will land in the muddy waters alongside Chase.

An angry Chase will greet you at the bottom, initiating a cutscene in which she yells at Drake for giving away his amulet before it is revealed that he was able to sneak the item into his pocket before forfeiting the backpack to General Guerro. From here, it’s off to Chase’s grandfather’s study, where he did most of his exploration work. This will begin chapter 13, My Grandfather’s Sanctuary, which is even shorter than the last one.

This chapter is basically just a long cutscene with a short minigame stuck in the middle. As Drake and Chase pore over the clues left behind by Chase’s grandfather, Drake will realize the true nature of the man’s research. With clues in hand, all they need to do is decipher them and head on to wherever they lead. Chase will hand Drake a piece of parchment, seemingly blank. Holding the Vita up to a bright light source will reveal otherwise, however. The brighter the light you can find, the faster the message will decode. This will initiate another cutscene and send Drake and Chase into the jungle hot on her grandfather’s heels.