It has arrived.

The virus which has been sweeping the world has been confirmed to be now infecting your own city. At the rate it spreads, it will be in your own street in an hour, brought by the fever-frenzied monsters the infected have become.

Your long-gone grandfather's 'isolation room' is now your only hope to avoid the virus. Unfortunately, things aren't that simple. You find he has safeguarded his precious retreat with puzzles and clues that at first glance make no sense.

Can you solve the riddles and complete the puzzles in time to make it to safety?