With a sudden crack of noise and light, a man stumbles out of the alleyway across the street. He's limping and his hair is plastered to his forehead with sweat as he makes his way towards the door of the Museum. He's covering something with his blazer, holding it tight across his stomach, with his left hand.
He knocks three times, loudly, and then collapses on the steps, his elbow jarred out of the way reveals a bloody wound in his stomach... and a tome wrapped in his coat.