Spider Riders

Spider Riders (スパイダーライダーズ ~オラクルの勇者たち~ Supaidāraidāzu ~ Orakuru no Yūsha-tachi~, Spider Riders ~the Heroes of Oracle~) is a series of science fiction novels first published in December 2004, published by Newmarket Press written by Tedd Anasti, Patsy Cameron-Anasti and Stephen D. Sullivan (books 2-3). The stories became the basis of the animated television series produced by Cookie Jar Entertainment of Canada and Bee Train of Japan.

Plot
Eleven-year-old Hunter Steel searches for the legendary inner world by following the instructions in his grandfather's journal. He enters a cave where he finds a mysterious manacle that attaches itself to him. A spider startles Hunter, who falls into a hole to the center of the Earth and into the subterranean world of Arachna. There, he discovers a small group of elite warriors struggling to survive and to save Arachna from the attack of giant insect mutants.

Other Sources

 * Wikipedia:Spider Riders
 * http://www.mangaupdates.com/series.html?id=23326
 * http://myanimelist.net/anime/2619/Spider_Riders:_Oracle_no_Yuusha_Tachi
 * http://myanimelist.net/anime/2620/Spider_Riders:_Yomigaeru_Taiyou

Other Wikis

 * w:c:AnimeBaths:Spider Riders
 * w:c:AnimeFeet:Spider Riders