Yes My Lord – Library Puzzle Solution

There is a puzzle in the Library with 4 crystals…

How to Solve Library Puzzle

To solve it:

1. It all starts from the left with a yellow.
2. Yellow and red are beasts who are sworn enemies and are as far away from each other as possible.
3. Three slots left. Then there is a castle which is surrounded by something on both sides.
4. Reverse the order.