Get ten billion percent excited for the ultimate science-fiction adventure! Jump into the Stone World with Volume 1 for 90% OFF at $0.99, and keep the scientific progress going with 30% OFF all other volumes in the series!
Ends August 18, 2026 at 11:59 PM PDT
Hoping to capture Dr. Xeno, the Kingdom Science is hard at work formulating strategies. Meanwhile, the enemy is working on a secret weapon of their own! The impending science battle will be a heart-pounding fight for supremacy on land, sea, and air!
