From the author of Frindle, Ben and his friends have just three days left to save their school or it will be bulldozed before their very eyes. The conclusion to Andrew Clements’s dynamic Keepers of the School series! The Keepers of the School—known to their friends as Ben, Jill, and Robert—have one last chance to save their school before it’s torn down to make room for a seaside amusement park. But their nemeses, Janitors Lyman and Wally, are just as determined to keep the kids out of the way and the demolition on schedule. One way or the other, this battle is about to come to a head. When all is said and done, will the school still be standing? Or will everything the Keepers have fought for be destroyed?

出自於《我們叫它粉靈豆》作者的筆下，班和他的朋友只剩三天能夠拯救他們的校園，否則校園就會在他們眼前被剷平。本書為安德魯‧克萊門斯最有活力的系列作品《學校是我們的》完結篇！書中的主角班、吉爾、羅伯特在學校被拆毀蓋成海濱遊樂園之前，只剩最後一次的機會可以拯救他們的學校了。但是他們的死對頭──守衛李曼與瓦力決定確保計畫順利成行，不讓孩子從中作梗。無論如何，他們正面臨戰役的緊要關頭。當一切成定局，學校會依舊存在，還是他們努力維護的每件事物都將遭到毀壞？