Based on sales for the week ending September 25, 2011

16. Pirate King
Laurie R. King, Bantam, $25, 9780553807981

17. Robert B. Parker's Killing the Blues
Michael Brandman, Putnam, $25.95, 9780399157844

18. The Keeper of Lost Causes
Jussi Adler-Olsen, Dutton, $25.95, 9780525952480

19. The Grief of Others
Leah Hager Cohen, Riverhead, $26.95, 9781594488054

20. Son of Stone
Stuart Woods, Putnam, $26.95, 9780399157653

21. The Magician King
Lev Grossman, Viking, $26.95, 9780670022311

22. A Trick of the Light
Louise Penny, Minotaur, $25.99, 9780312655457

23. The Tiger's Wife
Tea Obreht, Random House, $25, 9780385343831

24. Maine
J. Courtney Sullivan, Knopf, $25.95, 9780307595126

25. The Submission
Amy Waldman, FSG, $26, 9780374271565

26. Kill Me If You Can
James Patterson, Marshall Karp, Little Brown, $27.99, 9780316097543

27. Only Time Will Tell
Jeffrey Archer, St. Martin's, $27.99, 9780312539559

28. Heat Rises
Richard Castle, Hyperion, $25.99, 9781401324438

29. Ready Player One
Ernest Cline, Crown, $24, 9780307887436

30. The Great Leader
Jim Harrison, Grove Press, $24, 9780802119704

31. The Last Werewolf
Glen Duncan, Knopf, $25.95, 9780307595089

32. Abuse of Power
Michael Savage, St. Martin's, $25.99, 9780312651619

33. The Cut
George Pelecanos, Reagan Arthur, $25.99, 9780316078429

34. She Walks in Beauty
Caroline Kennedy (Ed.), Hyperion, $24.99, 9781401341459

35. Portrait of a Spy
Daniel Silva, Harper, $26.99, 9780062072184

36. Last Man in Tower
Aravind Adiga, Knopf, $26.95, 9780307594099

37. When She Woke
Hillary Jordan, Algonquin, $24.95, 9781565126299

38. On Canaan's Side
Sebastian Barry, Viking, $25.95, 9780670022922

39. Lethal
Sandra Brown, Grand Central, $26.99, 9781455501472

40. The Race
Clive Cussler, Justin Scott, Putnam, $27.95, 9780399157813

41. The Snowman
Jo Nesbø, Knopf, $25.95, 9780307595867

42. The Dog Who Knew Too Much
Spencer Quinn, Atria, $25, 9781439157091

43. I Married You for Happiness
Lily Tuck, Atlantic Monthly Press, $24, 9780802119919

44. Before I Go to Sleep
S.J. Watson, Harper, $25.99, 9780062060556

45. New York to Dallas
J.D. Robb, Putnam, $27.95, 9780399157783

46. The Vault
Ruth Rendell, Scribner, $26, 9781451624083

47. Flash and Bones
Kathy Reichs, Scribner, $26.99, 9781439102411

48. Jedi Path
Daniel Wallace, Chronicle, $19.95, 9781452102276

49. The Sisters Brothers
Patrick DeWitt, Ecco, $24.99, 9780062041265

50. Birds of Paradise
Diana Abu-Jaber, Norton, $25.95, 9780393064612