Kelsier squinted in the night, flaring tin and seeking out the other Allomancer. He thought he saw a figure crouching atop a wall in the distance, but he couldn’t be certain. He recognized the Allomantic vibrations, however. Each metal, when burned, gave off a distinct signal, recognizable to one who was well practiced with bronze. The man in the distance burned tin, as did the four others Kelsier had sensed hiding around Keep Tekiel. The five Tineyes formed a perimeter, watching the night, searching for intruders.