Uncharted 4: Avery's Tomb Three Crosses Puzzle Solution [Chap. 8, puzzle]
In this guide we see how to solve the riddle of light rays in Avery's Tomb in Uncharted 4 a Thief's End.
Do not forget to also consult the complete guide of Uncharted 4 the End of a Thief which collects many other useful guides on this game.
Avoiding any unnecessary spoilers, let's say that at some point in the Chapter 8 of the game, inside Henry Avery's Tomb in Scotland a puzzle found in the room with the 3 large crosses. Here is the solution:
Basically, after having explored the room well, it will be necessary turn on the lamp to send rays of light that will hit the opposite wall of the room. At this point, as shown in the video we propose above, you will have to interact with the three crosses in order to hit the plates placed on the wall with rays of light.
Do exactly as shown in the video and you too will solve this puzzle. If you have difficulty with the other puzzles of the game, consult the guide / solution to ALL the puzzles of Uncharted 4 now.