For half-a-decade, Dost Mohammed has kept a secret buried in his heart, about a sin he committed in 1947, when tribesmen from the Northwest Frontier Province lay siege to Kashmir, a beautiful valley sandwiched between India and Pakistan. Almost sixty years later, his grandson gets a chance to redeem that sin. Will he become the 'last man' from Kashmir, in fulfillment of a 1947 prophesy? The Last Man From Kashmir is an intriguing tale of love, jealousy and hatred that spans three generations.
this isn't a hook, it's a short description.
Half a decade is five years, making Dost Mohammed's time frame 1952. You probably mean half a century -50 years. And I know where Kashmir is, and even if I didn't you don't need to tell me in a hook.