We Are Green and Trembling by Cabezón, Cámara, Gabriel

Deep in the wilds of the New World, Antonio de Erauso begins to write a letter to his aunt, the prioress of the Basque convent he escaped as a young girl. Since fleeing a dead-end life as a nun, he's become Antonio and undertaken monumental adventures: he has been a mule driver, shopkeeper, soldier, cabin boy, and conquistador; he has wielded his sword and slashed with his dagger. Now, caring for two Guaraní girls he rescued from enslavement, and hounded by the army he deserted, this protean protagonist contemplates one more metamorphosis, which just might save the new world from extinction.