Lee Child's Never Go Back still sat at #1 on Apple's iBooks paid bestseller list, for the week ending September 16. Debuting on the list was Sue Grafton's new release in her Alphabet mystery series, W is for Wasted.

E.L. James's Fifty Shades trilogy returned in full in the top ten last week, with Fifty Shades of Grey coming in at #2, Fifty Shades Darker landing at #7, and Fifty Shades Freed inching in at #9.

Top Paid Books

1. Never Go Back by Lee Child (Random House Publishing Group)

2. The Husband's Secret by Liane Moriarty (Penguin Group US)

3. Fifty Shades of Grey by E L James (Knopf Doubleday Publishing Group)

4. W is for Wasted by Sue Grafton (Penguin Group US)

5. The Cuckoo's Calling by Robert Galbraith & J.K. Rowling (Little, Brown & Company)

6. Unbroken by Melody Grace (Melody Grace)

7. Fifty Shades Darker by E L James (Knopf Doubleday Publishing Group)

8. Seduced by Melody Anne (Melody Anne)

9. Fifty Shades Freed by E L James (Knopf Doubleday Publishing Group)

10. The Fault in Our Stars by John Green (Penguin Group US)

11. Inferno by Dan Brown (Knopf Doubleday Publishing Group)

12. Infinity Blade: Redemption by Brandon Sanderson (ChAIR Entertainment Group, LLC)

13. The Mayan Secrets by Thomas Perry & Clive Cussler (Penguin Group US)

14. Divergent by Veronica Roth (Katherine Tegen Books)

15. Still Foolin' 'Em by Billy Crystal (Henry Holt and Co.)

16. The Road To Forgiveness by Justine Elvira (Justine Elvira)

17. Envy by Sandra Brown (Grand Central Publishing)

18. Sycamore Row by John Grisham (Knopf Doubleday Publishing Group)

19. Gone Girl by Gillian Flynn (Crown Publishing Group)

20. Submit by Melody Anne (Melody Anne)