The case of the bicycle thief

"Summer is here, school is out and there's...nothing to do?! Since grown-ups invaded the skating rink, there's nowhere for Mina's friends to hang out. Luckily, a high-stakes competition is about to mark the opening of a new skate park. As everyone gets weirdly intense about it, Mina faces a string of mysteries. Who stole her cousins' new bikes? What does Gareth Trumpshaw want? And who keeps levitating past her window?"--Provided by publisher.