Original: Following the success of Percy Jackson , Rick Riordan created The Kane Chronicles , which features a modern-day Egyptian pantheon and two new sibling protagonists . Its first book , The Red Pyramid , was released on May 4 , 2010 ; the sequel will be released on May 3 , 2011 .
Simplified: Recently , Riordan has stated that he is working on a new series based upon the Egyptian pantheon , which then turned out to be The Kane Chronicles , with the first book , The Red Pyramid , to be released May 4 , 2010 .