What do you say about a twenty-five-year-old girl who dies? If you’re Madhav Jha, a boy from Bihar with a title and nothing more, you seek help from the noted author Chetan Bhagat, with whom you leave a packet of journals left behind by the beautiful Riya Somani from Delhi, whom you have loved but have never quite possessed. (Hence “half girlfriend,” right?) As it turns out, things are looking up for Madhav even without her; Bill Gates has come to visit, and the Gates Foundation arranges a grant for the Bihari town’s crumbling school. But he continues to mourn, until Bhagat clues him in: Riya is alive. Somewhere. And so Madhav resolves to find her, one way or another. It’s a cheery story, if perhaps too obviously intended as a Bollywood feature film; the side bits, the intersections of Indian and British (and later American) customs, are at least as interesting as the story itself.