Hollow Lantern: solving the lighthouse lens puzzle

The lens puzzle near the top of Hollow Lantern is where most players, including me, got stuck for a good while. The game expects you to remember something from much earlier.

When you first entered the caves, there were reflections on the water showing a specific alignment of symbols. Those weren't decoration — they're the solution to the lens arrangement upstairs.

If you didn't screenshot them, head back down. The reflections are still there, and once you match the lenses to that pattern the beam activates.

It's a beautiful example of a puzzle that rewards attention instead of brute force, and it genuinely made me rethink how I explore quiet adventure games.