Rubies

[Bad Man]

Where and how ¿

[manwé]

This is what I want to know.

[Milamber]

I robbed the treasury

[Azagthoth]

You can either complete tasks during a special event to earn them and sometimes they drop randomly when you conquer forts/castles.

[Saka]

Just make sure to update your storage. I lost multiple rubies because of that