"STORM" is a gadget-packed, high-adrenaline adventure'a middlegrade spy novel sure to leave readers white-knuckled and breathless. It's also the name of the ambitious organization formed by the story's three brainiac kids: Will, the loner, inventive genius, and creator of cutting-edge gadgets. Andrew, the software whiz-kid, millionaire, and fashion disaster. Gaia, the brilliant and mysterious teen chemist, fluent in French, Italian, Mandarin, and...