The blue ram has conquered Troggleland, follow the story of Mag, one of his generals, who used to be the king of the troggles, and now seeks to conquer all of Ponyland for Grogar.
Prequel to The Return of Tambelon, set more than 500 years before the events of My Little Pony n' Friends.

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This is an english edition I made of my own work, below you can read the original, spanish edition:
Ascenso y Caída de Tambelon