We the Children — Andrew Clements

A 6000-POUND WRECKING BALL IS ABOUT TO DEMOLISH BENJAMIN PRATT'S SCHOOL. . . .AND HE HAS ONLY 28 DAYS TO FIGURE OUT HOW TO STOP IT.

Ben's harbor-side school is going to be bulldozed to make room for an amusement park. It sounds like a dream come true. . . . Or is it more like a nightmare? Something about the plan seems fishy, and Lyman, the new assistant janitor, seems even fishier. When Ben and his friend Jill start digging for answers, they find things that the people with money and power don't want them to see. Could the history hidden deep within an old school building actually overthrow a thirty-million-dollar real-estate deal? And how far will the developers go to keep that from happening? Ben and Jill are about to discover just how dangerous a little knowledge can be.