Percy Jackson & the Olympians celebrates 138 weeks on the New York Times children’s series bestseller list, this week again at #1. That’s a lot of young demigods reading the series!

39 Clues #8, The Emperor’s Code by Gordon Korman, arrives April 6! Visit the 39 Clues site and find hidden messages in the cover art to unlock a passage from the book.

Rick Riordan will appear March 14 at the Metropolitan Museum of Art in NYC for a public talk about PJO and Greek mythology. Lots of events for kids and a workshop for teachers. More details TBA.

The Ultimate Guide for Percy Jackson & the Olympians enters its third week on the NYT bestseller list for children’s chapter books. Check it out for an inside look at Percy’s world!

Read the first chapter of the Kane Chronicles, book one: The Red Pyramid, now live on Disney’s Kane Chronicles website.

The seventh 39 Clues volume, The Viper’s Nest by Peter Lerangis, is published Feb. 2. The hunt for the ultimate secret continues!

Percy Jackson and the Olympians is back at #1 on the New York Times children’s series bestseller list!

The Wall Street Journal blog has exclusively revealed the cover and a first chapter excerpt for The Kane Chronicles, Book One: The Red Pyramid.

Percy Jackson & the Olympians: The Ultimate Guide, a compendium of all things Percy, will be released Jan. 18. Full-color illustrations and detailed sections will tell you all about the gods, monsters, spirits, and demigods of Percy Jackson’s world. Check it out!

The Last Olympian is #1 on BN.com’s list of Best Kids’ Books for 2009. Happy New Year!