invisible-james-patterson-193x300Despite a business conflict that has Amazon doing less to move large amounts of Hachette product than for books by other publishers, two titles from Hachette jumped into the top five of the e-book bestseller list this week.

James Patterson’s “Invisible” and J.K. Rowling’s “The Silkworm” (under her pen name Robert Galbraith) are ranked Nos. 4 and 5 this week and are both on the list for the first time. Both are titles that came out in late June and did not enjoy pre-order buying capabilities on Amazon, an important factor in determining best-sellers (though “Invisible” had a free preview of the first eight chapters available on Amazon since late April.)

Last week, “The Silkworm” failed to hit the bestseller list on its debut week, likely due to an inability to pre-order the title on Amazon.

Meanwhile, the average price of a bestselling e-book decreased this week to $6.99, down slightly from last week’s average of $7.37.

E-book bestsellers from the week ending 6/28:

1. “The Fault in Our Stars”, John Green, Penguin Random House, $4.99

2. “Top Secret Twenty-One: A Stephanie Plum Novel”, Janet Evanovich, Penguin Random House, $11.84

3. “The Goldfinch: A Novel”, Donna Tartt, Hachette, $6.99

4. “Invisible”, James Patterson; David Ellis, Hachette, $8.99

5. “The Silkworm (Cormoran Strike Series #2)”, Robert Galbraith, Hachette, $8.99

6. “The Husband’s Secret”, Liane Moriarty, Penguin Random House, $5.99

7. “Mr. Mercedes: A Novel”, Stephen King, Simon & Schuster, $11.99

8. “All Fall Down: A Novel”, Jennifer Weiner, Simon & Schuster, $10.99

9. “Orphan Train: A Novel”, Christina Baker Kline, HarperCollins, $6.99

10. “Gone Girl: A Novel”, Gillian Flynn, Penguin Random House, $8.52

See the complete list of this week’s top 25 e-book bestsellers at Digital Book World.

Jeremy Greenfield is responsible for managing all editorial content on DigitalBookWorld.com, including the DBW Expert Publishing Blog, the Digital Book Wire and editorial email and social media communications. Prior to joining Digital Book World in October 2011, Jeremy spent three years as a careers editor at FINS.com. Jeremy lives and works in New York City and is a graduate of the University of Pennsylvania.