The front desk

A search of the desk yields little of note- all of the drawers are closed tight, locked by small silver keyholes. Some papers clutter the top of the desk, but most seem to be encrypted with some sort of code, and what is readable makes little sense. The most prominent page has a diagram filling most of the page, which appears to be an image of a man in a similar fashion to that of the Vitruvian Man, with a specific exception- the man in this image sports a prominent horsecock, lengthy enough to reach to his knee in the drawing. Another page is a clear calendar, with entries for each day, bar one. Based on your time so far, you figure no more than a day has passed outside, which would mean the sole empty entry corresponds to the current day.