一個平凡的三年級女學生遇到天大麻煩時，會怎麼辦呢？幸好，凱蒂憑著她的聰明才智，總是有辦法一一解決這些難題──而且要不計任何代價！
What is one ordinary third-grade girl with a really extraordinary problem to do? It's a good thing Katie is resourceful and smart enough to find a solution for every problem . . . no matter how much of a disaster she causes!
【適讀程度】
Age Range: 7 - 9 years