Mark of the Ninja

The scrolls are like any other collectables, they are hidden throughout each and every level, with special challenge rooms for one scroll per level after level 1.

Level 1

• Immediately after receiving the grappling hook, use it () on the ledge above you and the one above that and move into the vent to the top left of you on the screen. Continue to the top left of that room to find the first scroll.
• Proceed through. the level until you enter a large room where you can shoot a big light off the ceiling with your dart ( +) to make it fall on two guards. Once they're dead, head left from where they were and enter a doorway, climb to the top part of the room to find the scroll.
• The game sort of leads you to this one. Shortly after the previous scroll you'll be told to "lean against the door to sense what's on the other side", and you'll see a guard walking back and forth between two ceiling lights. Take him out (you can access a vent from the roof) and grab the scroll from the far side of the room.

Level 2

• Progress through the level until you reach an area with a vertical laser in front of you blocking the way and two horizontal lasers under the ground in front of you with a gap that you must jump. On the other side is a lone guard with a grapple point above him. Take the grapple point and follow the path to a giant gong, hit the gong for a special puzzle you need to complete for the scroll. A little hint, there is a box on the level right above where you enter the challenge. Hold to move it.
• Proceed back outside and a ways farther into the level until you are almost at the big circle/x on the map. Once that circle/x is right above you, head left and take out the guard, and continue left until you reach a dead end where you'll find the scroll.
• Again, as you near the large circle/x at the top of the building you will be near a scroll. Instead of continue through the vent up to the roof, head into the vent to the left of it and continue to the left to find the scroll at a dead end in the vent (it's a T-shaped vent on the map).

Level 3

• Immediately after learning how to lockpick head inside, take out or avoid the guard on the stairs and head into the door on the right at the top of the stairs. Stop at the next door and look through it to see a red laser alarm moving up and down the far wall. Pick the lock and time your opening of the door with the laser, sprint into the room to grab the Scroll, then back out and close the door behind you to avoid the alarm.
• Once you reach your first shielded soldier, look to the platform on the opposite side of the building he is next to and you'll see another guy walking around. From there, head under the platform and to the bottom right of that area to find a vent. Follow the vent to another gong, and challenge. For this one, you want to make your way around the outer wall of the area, avoiding the lasers, and pulling 2 of the 3 levers (not switches) in the room to open the left side of the inner area of the room to allow you to access the scroll.
• After getting the tracker you'll reach an elevator shaft. Move the elevator and then climb to the top of the shaft and exit through the vent on the right to enter a room with 4 moving lasers. Drop into the vent in the center of the room, move through the vent and enter the room with the scroll and two lasers. Toss a smoke to make it safe to drop down and get it.

Level 4

• Once you get to the motion sensor over the staircase with 2 guards on it, go out onto the walkway where the guards were and drop down to the bottom floor to find the scroll just below where they were standing.
• When you have to open the gas vents, open up your map with  to check out the location of the bottom left most vent on your map. Make your way there and once you're in the first part of the room, head into the vent in the ceiling for the scroll.
• Open the map back up again, and now head to the top right vent room. Once you're in that room (it's a big room with a chandelier in the middle), head to the right and into the vent leading to this gong for another challenge. Use your grappling hook to navigate through the lasers, to the appropriate buttons to shut the lasers down and allow you to continue to the top of the room where the scroll will be.

Level 5

• Continue through the level until you have to go up and to the left, passed a shielded soldier. Stop there, and instead go to the bottom right corner of the room and into the vent for another challenge. Jump across the gap you start in front of and grab the big box in front of you with . You'll need to maneuver this through the lasers and switches, and weigh down each of the scales that controls the doors in order to progress to the scroll.
• Once you reach the elevator shaft leading to Karajan's office, continue into the next room and move up to the top of this room. Go to the far left end of the top portion of the room and you'll see the scroll in the path of a moving laser. Perch on the grappling point about the scroll and hold  to slide down to the scroll, grab it and quickly slide back up the chain.
• As you chase after Karajan, you'll come to a room with two guards watching the inside of the door and a vent leading from the opposite side of the door, to right behind them. There is also a shielded guy in the top part of this area. Eliminate the enemies, and then head into the vents above this room to see two lasers, two vases and the scroll between the vases.

Level 7 

• Continue until you have to move a coffin to progress. Instead of going in the hole under the first coffin, continue to the right and move the second coffin to reveal a small alcove with the scroll in it.
• In the elevator box riding sequence jump off to the left once you hit the top of the elevator shaft, take out the guy there and head into the vent for the next challenge. This whole challenge is similar to what you've been doing in the level, be sure to grab onto the box and keep it between you and the lasers.
• The third one can be found after some more laser box action. Once you reach the circle/x head to the left first and jump across the destructible grappling hook points, hop over to a box and take out the gas mask guy who is protecting the scroll.

Level 8

• Progress until you reach the place where you can swap out your techniques, and continue right, head into the vent and start the challenge. This challenge is rather silly, because you need to drag and throw corpses around the room to block off lasers and weigh down a switch. Make sure you throw as many bodies as you can down to the bottom floor when you get there so you can basically carpet it and the lasers will all turn off on the bottom level. Also, you can throw a body through the electrified wall at the end.
• From the store, backtrack a bit and take the vent that leads S/SE. take out the guards and the elites and head into the room in the bottom left for this scroll.
• After either sabotaging the helicopter or killing the pilot, the door on the left side of the map will open up so you can finish the level. Head in that direction until you see a guard. Take out the guard and drop below the bridge he was walking on and head left to find the scroll.

Level 9

• You'll see this as you come into the building, in a room above you. Circle left and up into the vents, move the box so you can enter the vents nearer the scroll. Head right, outside and down into a little alcove with the fuse box. Destroy/ shut off the fuse box and backtrack through the vents, grab the key as well while you're here. Once you're back to where you first saw the key, head right this time and up into the vents to grab the scroll.
• As you climb out of the previous building, the path will start to go left, with a switch next to the door you need to open to proceed. Instead of going that way, go into the vent on your upper right for another challenge.
• Located in the top left corner of the map. When you're outside, head all the way left and then climb up the side of the building until you can't climb anymore and that's when you'll reach the scroll.

Level 10

• Rather soon after beginning the level you'll come to a building (just as the sandstorm starts) that has the entire first floor covered in explosives and the 2nd floor is an open balcony that leads to a grand staircase. On the right side of this building is breakable flooring that you can fall through down into the basement. In the basement you'll find some more bombs, tripwire traps and the Scroll.
• After talking to the prisoner about his tools and stuff, head into the next building and go down into the basement, which has tripwires attached to boulders and some more bombs. Clear the basement out and continue heading left to find the challenge and scroll.
• In the rightmost 1/3 of this map, while above ground in the sandstorm, you'll come over a thin ceiling leading to a little underground bunker with two guards directly below and two sleeping dogs to the right of them. You may need some luck from this, but in general you want to hit the bell to the left of you (probably hit it twice) and move to either side of the thin floor so they don't spot you. As soon as both guards are facing away from you, immediately drop down and stealth kill both. The scroll is to the left in a slightly hidden tunnel.

Level 11

• As you jump to the building with the stalkers in the beginning of the level, you will see the Scroll on the interior side of the wall you are facing. Enter the building and hide in the vases to avoid the stalkers, or just take them out and move up the staircase. The scroll is on a ledge over the staircases.
• As you exit the tunnels and proceed to the next building, stop and head into the small tunnel next to the one you just came from (there is a tall sort of gazebo above the entrance) to find a new challenge. Use your new ninja technique to make it safely through the challenge.
• As you exit the tunnel with the scroll challenge in it, head immediately into the next tunnel you come across as you make your way to the next building. Watch out for the stalkers, and make your way up to the top ledge of the area they are patrolling to find the scroll in a dead end on that ledge.

Level 12

• SECOND TRAIN TUNNEL!! A dangerous, nearly impassable tunnel should be a dead give away, but if you happen to go left in the second train tunnel (where you climb on the ceiling), it's very hard/impossible to backtrack to this. Instead, head to the right and move over to the grappling hook point above the block that disappears when it has light on it. Guess where the light comes from - the train. Once you're on the ceiling above the block, wait for the train and as soon as the block even slightly vanishes, drop down and climb into the floor vent (just falling onto the floor won't work, fall and press ). For the challenge, break the light in the middle of the room with a dart, spin the wheel in the middle, shine the light on the top right door-blocking block, go pull the bottom right lever, spin the center wheel so the light is on the top left box, then pull the bottom left switch. Move the center light to either of the big masks on the wall to reach and destroy both generators. Climb up either wall facing the center of the room and use Mark of Serenity to jump across to the inner side of the box on the opposite side of the room, then grapple up to the scroll. (Congrats on getting "Of the Mind!")
• As you're entering the next set of tunnels (the alternate path to the building full of stalkers) there will be a shield guard to the top right of you, blocking your progress. From here, look to your right on the staircase to find a vent for you to enter and grab the flag.
• After you head back, and finish leaving the tunnel, instead of progressing to the right, head to the left to the building full of Stalkers. Climbing up the right side is a bit safer, but be aware that stalkers patrol each floor. The scroll is in the vent at the very top of the building.

(Congrats on getting "Haiku!")