Great Angry Wall: 8-3

Inside the Templar's Hold, use the Crossbow to kill sleeping guards below. Select the Crossbow, tap a guard's icon, and press Y to fire. Kill all guards for orbs.

Head southeast and kill the guard, then climb the ladder. Kill the two archers and jump to the northern rooftop for a checkpoint.

Head north and jump to the ledge with an archer. Kill him, jump back south to the rooftop with the ladder.

Run and jump southeast onto the platform with guards. Kill them, then pull the four crates southward to raise the platform and get a checkpoint.

Wait for the dangerous enemy below to move east. Drop west and climb onto the rooftop. Climb the ladder and drop to the northern area, then step into the marker for a checkpoint.

Jump onto the platform, swing/jump from the rope to the next ledge. Hang from the edge, climb southeast, then onto the ledge with the blue orb. Repeat to reach the ledge with the marker.

Jump to the southern platform, collect orbs, and sneak up on the guard ahead to assassinate him. Go down the ramp and drop to the lower ledge for a checkpoint.

Drop to ground level, approach the man, and press A for an interrogation mini-game. Complete it to learn Basilisk's location.

Head southeast and enter the building. Climb the ladder inside to reach a checkpoint above.

Kill the archer, head north along the thin beam avoiding swinging axes. Jump to the rope ladder north and climb to the rooftop.

Run up the steep hill, kill an archer, then jump to the northeast platform along the wall for a checkpoint.

Make your way east by jumping from ledge to ledge, avoiding the swinging axe. Use the Grappling Hook to swing after the last jump to the platform ahead.

Drop to the rooftop below, head southeast, then drop to kill another guard.

Head west across ledges, swinging and avoiding boulders and archer fire. Kill the guard at the far end, then head south along thin beams.

Jump from beam to beam, continuing south to a checkpoint. Go east and swing/jump from the rope to another platform.

Walk along the thin beam, jump east (hold R), then jump south onto the eastern ledge for a checkpoint.

Climb onto the eastern rooftop, kill two guards, then head northeast to the marker. Jump to the rope and swing/jump east, using the Grappling Hook to swing further.

Land on the ledge with templars. Walk behind each and assassinate them. Slide down slanted rooftops and climb down the ladder to reach Basilisk.

To defeat Basilisk: Do NOT attack normally. Wait for him to approach, press Y when prompted. When he kicks you away, press X to climb onto his back. Press Y when prompted to damage him. Repeat until he runs away.

Head north and up the steps to end the area.