Juan-Tomas Avila Laurel, one of Equatorial Guinea's best-known dissident writers, is an author who deserves to be read the world over. With The Gurugu Pledge, he's captured an angry and incredibly urgent slice of the migrant experience – a snapshot of the dangers faced by those crossing the African continent in search of the barbed wire fences at Melilla- the Spanish enclave on the North Eastern tip of Morocco.