In this murder mystery, Luke Harding just got his license as a Forensic Investigator. However, just a day after he got the license, a murder struck. Someone shot Crispin Addley, Luke’s academic rival, with an arrow. Soon after, Ms. Kee, the head principal of the school, gets injected with poison. After a little longer, Vince Wainwright, the person who Luke’s best friend was paired to be married with, was killed with a glass cutter. The worst part is, all the evidence is pointing to Luke. After thinking about it, Vince Wainwright was going to get paired (pairing is a system where students have the people they marry chosen for them) with his lover, Jade. Ms. Kee gave Luke a lot of punishments back in the day, and Crispin was Luke’s academic rival. One important thing Luke noticed was that all of the weapons were related. The glass cutter that killed Vince had DIAMONDS on it, the poison that killed Ms. Kee was venom from a DIAMONDback rattlesnake, and the head of the arrow that killed Crispin was DIAMOND shaped. The thing is, Luke’s nickname among the teachers is Diamond because he’s a diamond student. So it was clear, someone was trying to frame Luke. He started tracking people that he knew hated him and narrowed it down to two people. Ed Hoffman, Luke’s rival in sports, and Rick Glenfield, a teacher who got downgraded to janitor due to Luke hacking Jade’s grades on Rick’s watch. Luke knew a few things. There was a weird powder at Vince’s death scene (gripping powder for basketball), Ed was heading to detention around the time of Ms. Kee’s death, and both Rick and Ed were both skilled archers. Luke was able to infer who the culprit was, but he didn’t have enough physical evidence. So, he came up with a plan to force a confession. He asked Jade to help him with this invention that she made called Spotlight Sound. It makes a spotlight of sound that you can only hear when you enter the “spotlight.” Then, during Ms. Kee’s funeral (which Jade made the music for), she used Spotlight Sound to play a pre-recording of Malc’s voice that said “You’re under arrest for murder.” Since only the culprit heard that, he confessed in front of everyone at the funeral that it was him, but he wasn’t going down without a fight. The culprit pulled out a knife to stab Luke, but Jade played an ear-splitting sound and directed it to only the culprit through Spotlight Sound. This caused him to get distracted until guards came, and Ed Hoffman was arrested for three murders.