As a languages geek, I´ve always been fascinated by the vagaries of languages - especially my native tongue, Spanish. And this small slice of West Africa holds a unique distinction as the continent´s only Spanish-speaking country, and this is the lingua franca that most ties it together. There are a dozen tribal languages spoken here - with Fang the most widespread, especially on the mainland, and Bubi important on Bioko Island - but Spanish is used in government,