Kai & Zoe AdventuresThe adventures of Kai & Zoe, exploring history, learning about new things and learning how to be better people - relax :)Age 6–101 booksExplore by topic
Explore book series
Kai & Zoe AdventuresThe adventures of Kai & Zoe, exploring history, learning about new things and learning how to be better people - relax :)Age 6–101 booksExplore our adventures
KaiExplore our adventures
ZoeKai & ZoeExplore our adventures
EN210–12
EN210–12
EN210–12EN28–10 
EN49–11
EN38–10
EN9–11
EN29–11
EN9–11
EN210–12
KaiExplore our adventuresZoeKai & ZoeExplore our adventuresSpace11 books
10
EN210–12Gagarin’s Orbit
EN210–12Race to the Moon
EN210–12Countdown to Space
EN28–10Moon of Singing Stones
EN49–11Underwater Wonders
EN38–10The Weather
EN9–11What If Gravity Disappeared for One Day?
EN29–11What If the Moon Were Much Closer?
EN9–11What If Your Bedroom Became a Spaceship?
EN210–12How GPS Finds You
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