After waking up, explore your immediate cell. You'll find a note on the floor detailing your amnesia. Exit the cell and proceed down the corridor. You'll soon come across a small room with a table. On this table, you will find your trusty lantern. Pick it up and immediately equip it by pressing 'F'. Remember that the lantern consumes oil, so use it sparingly in well-lit areas. Also, look for your first tinderboxes in this area to light any available candles or torches.
