The eccentric Mr. Puff lives next door to Sam in a house full of interesting things. Best of all is the basket of giant dinosaur eggs-until they begin to hatch. The trouble with dinosaurs is that they grow... and grow. Something needs to be done, and fast!

USBORNE图书馆系列到LEVEL5之后，词汇量增加到1000-1500，每页的文字数量在十行左右，共48页，涵盖了英文大部分的语态和时态。从这个级别开始，由图画书逐渐过渡到章节阅读。适合小学五六年级和初中生作为词汇量扩展读本。Level5系列均为世界知名的民间故事和童话故事，学生一般都已接触过中文版本。