Book excerpt: Disillusioned with life as a literary publicist in London and sick of her hotshot TV presenter boyfriend, twenty-something Rosie Richardson decides to give up glitz for good deeds and escape to Africa to run a refugee camp. When famine strikes and a massive refugee influx threatens to overwhelm the camp, officials drag their heels. The only way to get food fast is to bring the celebrities first, so Rosie returns to London to organize a star-studded and risky emergency appeal. Deftly skewering the world of celebrity fundraising, Fielding's debut novel is both comic and thought-provoking. Cause Celeb crackles with insights into the nature of fame, passion, and altruism in our time, all the while following an unlikely-but hugely likeable-heroine.