Does anyone know what the first Discworld book is called in Spanish?

Will reveal tomorrow

I have an idea of what it might be, but I don't know for sure.

I decided to throw a link so those who doesn't know, can learn about this saga called Discworld.

Go then what is it?

Guessing through the English tile, I think it would be "El color de la magia".

I know this sounds weird but I hope to be wrong.
I want the game to go on.

You are pretty much spot on the title is: El Color de la Magia

Ok next one The Light Fantastic