 Everyone is working in the local community garden, a successful place that s bursting with action. Kids come to play, rabbits live peacefully, and Lenni s friend Sally runs a free food program with the vegetables grown there. Gaby is digging in the garden when she complains of a headache and suddenly collapses. Everyone rushes to help her and they take her home, though Gaby doesn t know why she fainted. While she s resting in bed, Jamal drops off a container of chicken vegetable soup that his grandmother made. Alex assures everyone that his sister will be fine but when she collapses again, her father takes her to the hospital. Alex realizes that other kids have gotten sick in the neighborhood and recently, the rabbits in the garden have died. The team gets together and creates a survey that they use to ask everyone in the neighborhood. They discover that most people who got sick had been in the garden or eaten vegetables from it. Ghostwriter helps them dig up the source of the problem: barrels of toxic waste were buried inside the garden.