Based on exhaustive research and unprecedented access to White House officials, CIA analysts, Pakistani intelligence, and the military, this is the definitive account of ten years in pursuit of bin Laden and of the twilight of al-Qaeda.

Prologue: a comfortable retirement -- 9/11 and after -- Tora Bora -- Al-Qaeda in the wilderness -- The resurgence of Al-Qaeda -- A working theory of the case -- Closing in on the courier -- Obama at war -- Anatomy of a lead -- The last years of Osama Bin Laden -- The secret warriors -- Courses of action -- The decision -- Don't turn on the light -- Aftermath -- Epilogue: the twilight of Al-Qaeda.