"Don't worry," He said with a grin, "I remember how to count cards." he started moving backwards towards the window he had come in from. "53.3363 by 10.2341 minus 20.3 by 100.552, when the bluebird sings. See you then. I'll just show myself out." It was an easy enough code, the first part being a simple map problem revealing the coordinates of a nearby park and the second part meaning 'at dawn'. By the time she had figured it out though he had already fallen backwards out of the window and was halfway down the street three stories below.