The burglar in the library - Lawrence Block

Bernie Rhodenbarr is a New York kind of guy, an urbane antiquarian bookseller who moonlights as a buttoned down burglar. Until a rare Raymond Chandler novel lures him and his buddy into Agatha Christie country, and you know what that means. A classic English country house. A guest list awash in eccentricity. And the snow keeps falling. The bridge is out. The phone lines are cut. And, one by one, somebody's killing off the guests. And...shh! There's a burglar in the library! 'Wonderfully detailed and inspired writing' - The Guardian