Odd enough that the door is already open. He looks behind him with a raised eyebrow. Just like the rest of the town. No sign of a living resident. John slips inside and shuts the door behind him to take a look at the surroundings.

No dust.

He starts to look for anything that might give him information. A calendar for the date, a sign for how long the lighthouse has been operational. Maybe even papers suggesting what sort of ships may have been documented as being seen by the keeper.