Not surprisingly, the hotly anticipated newest release from Rick Riordan, The House of Hades, was the top selling paid book in Apple's iBooks store for the week ended October 14. As it was Riordan's only hardcover publication this year in his various series for kids, there was a lot of pent-up demand for the fourth story in the author's Heroes of Olympus series. Riordan landed just above Elizabeth Smart's account of her abduction and rescue, My Story, which came in at #2.

Gillian Flynn's blockbuster novel, Gone Girl, was back at the top of the list in the #3 spot -- a jump possibly prompted by Fox's reveal of the release date for the movie adaptation of the book (it last appeared on the chart in the #16 spot for the week ended September 30). A boost also likely generated by movie buzz was that of Enders Game, which sat in the #5 spot. The film version of Orson Scott Card's military sci-fi novel, starring Harrison Ford, Asa Butterfield, and Hailee Steinfeld, opens in theaters November 1. John Sandford's Storm Front, the seventh book in the author's Virgil Flowers series, hit the list at #4.

Top Paid Books

1. The Heroes of Olympus, Book Four: The House of Hades by Rick Riordan (Disney Publishing Worldwide)

2. My Story by Elizabeth Smart & Chris Stewart (St. Martin's Press)

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

4. Storm Front by John Sandford (Penguin Group US)

5. Ender's Game by Orson Scott Card (Tom Doherty Associates)

6. The Book Thief by Markus Zusak (Random House Children's Books)

7. The Longest Ride by Nicholas Sparks (Grand Central Publishing)

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

9. Killing Jesus by Bill O'Reilly & Martin Dugard (Henry Holt and Co.)

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

11. I Am Malala by Malala Yousafzai & Christina Lamb (Little, Brown and Company)

12. Doctor Sleep by Stephen King (Scribner)

13. David and Goliath by Malcolm Gladwell (Little, Brown and Company)

14. Gone by James Patterson & Michael Ledwidge (Little, Brown and Company)

15. Overcoming Fear (Growing Pains #2) by K.F. Breene (K.F. Breene)

16. Divergent by Veronica Roth (Katherine Tegen Books)

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

18. Butterflies in Honey (Growing Pains #3) by K.F. Breene (K.F. Breene)

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

20. Doing Hard Time by Stuart Woods (Penguin Group US)