Save the kingdom

For centuries, the peoples lived peacefully side-by-side until a major disaster occurred and the sacred Delvenstone was stolen. 

Since, there has been nothing but misfortune across the lands.
ate, envy and accusations between the peoples obstruct the cooperation needed to find a solution.

Now, great Evil approaches, which demands the nations to work together. 

Can you find the Delvenstone, before it is too late and Good can never return?

N.B. You travel through various worlds. Tall people will have to stoop regularly.
Leave your stiletto heels at home and Mind your Hat / Head.