How do I power up the conduit?

According to the Bulletin Board message, you have to go to the Inn.

Do you remember where you hid the power source when Mr. Gordon's ancestor wanted to take it from you?

Presumably it's still in a wine bottle somewhere at the Inn.

First step would be to retrieve it, then.

The inn building in the 1600s is off limits, and there are no wine bottles in the 50s inn.

There are, however, some old dusty wine bottles on the floor in the back office of the present-day inn.

Can you see the POWER SOURCE in the bottom-right bottle in the bottle rack? Tap to retrieve it.

Now, do you remember where the conduit was?

It was hidden in plain sight, in Mr. Gordon's ancestor's study.

That's the room that is currently bricked up, yes.

So now there's a WALL standing in the way.

Do you feel up to smashing down walls?

With the right tools we bet you could do it.

Do you happen to have a very heavy-duty hammer maybe?

There's one in front of the STABLES.

If you haven't done so already, time travel to the 1600s and pick up the blacksmith hammer from in front of the stables door.

Now that you have the right tool for the job, you only need the help of time itself.

It stands to reason that the more that time has passed since the wall was constructed, the easier it will be to demolish.

Time travel to the PRESENT and use the hammer on the bricked-up doorway in the Inn.

Now step through the newly-opened doorway to get taken straight to the conduit in the fireplace.

Place the power source in the slot. One job well done.