The underground medical community is currently using Bootham to hold people captive in order to test their medical expertise. You must leave the hospital immediately if you desire to avoid death because surgery is scheduled for you soon.
Discovering a way out of the eerie asylum from the 19th century is your first order of business. There will be a negative event in 900 seconds.
While specters from long ago attempt to prevent you from escaping, you must discover codes to unlock necessary doors. Everyone is counting on you to decipher the codes before the battery and torch run out of juice.
You can find batteries and other interactive objects scattered over the map. If you can locate batteries for your flashlight, you can use it for longer, which will buy you more time to find what you're looking for. However, it's not as easy as that.