Poisoned Arrow

What kind of dirty tricks are being played at the local theatre? Why would someone take the blame for a crime they couldnt have committed? And how do the top team in the school quiz seem to know the answers before they hear the questions?Solve three more mind-mangling mysteries in this seventh book about Saxby Smart, schoolboy private detective! Saxby reveals the clues that solve the case, but are you smart enough to work out the answers?