Things are amiss at 99 Maple Lane. Ingrid's dad's job is injeopardy, but he won't explain why. Ingrid's brother, Ty, is getting reallybuff, but the acne on his back makes Ingrid wonder if there's more to hisphysical fitness than lifting weights. Meanwhile, Ingrid's beloved soccercoach is replaced by the icy Julia LeCaine, who seems to have another agendaaltogether, and at rehearsals for The Wizard of Oz, Ingrid seessome suspicious goings-on at Echo Falls High. True to her hero, Sherlock Holmes, Ingrid begins fishing aroundto find out who's really pulling the strings in Echo Falls. But one morning,en route to MathFest--an oxymoron if she's ever heard one--Ingrid iskidnapped and locked in the trunk of a car. If she escapes, will anyone believeher story?