In a vase in a closet, a couple of years after his father died in 9/11, nine-year-old Oskar discovers a key... The key belonged to his father, he's sure of that. But which of New York's 162 million locks does it open?

'UTTERLY ENGAGING. FROM THE VERY FIRST PAGE IT IS A HUGELY INVOLVING READ...A HEARTBREAKER: TRAGIC, FUNNY, INTENSELY MOVING' SPECTATORIn a vase in a closet, a couple of years after his father died in 9/11, nine-year-old Oskar discovers a key...The key belonged to his father, he's sure of that. But which of New York's 162 million locks does it open?So begins a quest that takes Oskar - inventor, letter-writer and amateur detective - across New York's five boroughs and into the jumbled lives of ...