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搜索作者：Steve Harpster / 第1页

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Double Trouble
Double Trouble
Nick Eliopulos, Steve Harpster, 等
Night of the Homework Zombies
Night of the Homework Zombies
Scott Nickel, Steve Harpster
Beyond the Black Hole
Beyond the Black Hole
Blake A Hoena, Steve Harpster
The Super-Powered Sneeze
The Super-Powered Sneeze
Scott Nickel, Steve Harpster
Blast to the Past
Blast to the Past
Scott Nickel, Steve Harpster
The Boy Who Burped Too Much
The Boy Who Burped Too Much
Scott Nickel, Steve Harpster
Curse of the Red Scorpion
Curse of the Red Scorpion
Scott Nickel, Steve Harpster
First Science Experiments: Super Senses
First Science Experiments: Super Senses
Shar Levine, Steve Harpster