English publisher Bloomsbury wants to buy its way into the US market, and its fortune built on Harry Potter should make it happen. “The publisher will have an estimated cash pile of £50m by the end of the year as it reaps the benefit of Harry Potter and the Half-Blood Prince, the sixth book in the teenage wizard saga. A US children’s publisher with a weighty back catalogue is a priority target but the group admitted yesterday that many potential acquisitions were demanding too high a price.”