Based on sales for the week ending October 2, 2011

16. The Leftovers
Tom Perrotta, St. Martin's, $25.99, 9780312358341

17. We the Animals
Justin Torres, Houghton Mifflin Harcourt, $18, 9780547576725

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

19. Habibi
Craig Thompson, Pantheon, $35, 9780375424144

20. The Girl Who Kicked the Hornet's Nest
Stieg Larsson, Knopf, $27.95, 9780307269997

21. River of Smoke
Amitav Ghosh, FSG, $28, 9780374174231

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

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

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

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

26. The Buddha in the Attic
Julie Otsuka, Knopf, $22, 9780307700001

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

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

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

30. The Forgotten Waltz
Anne Enright, Norton, $25.95, 9780393072556

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

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

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

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

35. The Family Fang
Kevin Wilson, Ecco, $23.99, 9780061579035

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

37. Tag Man
Archer Mayor, Minotaur, $25.99, 9780312681944

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

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

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

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

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

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

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

45. House of Holes
Nicholson Baker, S&S, $25, 9781439189511

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

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

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

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

50. 1225 Christmas Tree Lane
Debbie Macomber, Mira, $16.95, 9780778312697