Luke Harding is excited to become the youngest person ever to qualify as a forensice invstigator.  He barely has time to celebrate his final exams when Malc, his Mobile Aid to Law and Crime, calls him to their first case. A fellow student has been mysteriously shot dead with an arrow. Two more grisly on-campus murders follow, and all the evidence points to Luke himself. The stakes are high as Luke sets out to prove his innocence and show that he has the talent to crack any crime.