When demons begin appearing on Earth unpredictably, foreshadowing a cataclysmic breakdown of their magic, Artemis and his friends face a new foe--a twelve-year-old girl whose intellect just might match Artemis's own--as they try to prevent catastrophe.

With the rivalry between Gray Wing and Clear Sky boiling over, Thunder and Gray Wing search for a peaceful path to the future.

Famous young inventor Billy Sure is hosting an online contest to help other kid inventors.

Magnus and his friends set sail for the farthest borders of Jotunheim and Niflheim in pursuit of Asgard's greatest threat, Loki's demonic ship full of zombies.

Fresh from his intergalactic adventure, Victor is casting about for something new to apply his formidable know how to. The obvious next step is cello-making. However, the not so mellifluous sounds that emanate from his creations are enough to wake the dead. That's right, there are zombies let loose and it's up to Victor, Patty, and Dumpylumps to not get eaten.