Bridge Level Reader 4: Battle Through Time and Space 咬咬书儿童心灵成长阶梯阅读(第4级)使劲咬-超时空对决

Bridge Level Readers are a series of books perfect for beginning independent readers. There are four levels of books, with ten books in each. Level one includes pinyin, and then the reading difficulty increases with each level thereafter. Each book is one complete story with chapters. Language, content, length, and font size get harder in each level.