Scream

 Scream (悲鳴を上げる, Himeiwoageru) is the first chapter of Volume seven and 53rd chapter overall.

Plot
The investigation team, with their faces covered by tinted helmets, go over to Higuchi and arrest him. Mogi gives him a headset, and through the headset, L demands that Higuchi tell him how he has been killing, threatening to torture him if he refuses to cooperate. Higuchi tells him that there is a notebook that kills whoever’s name is written in it and that the notebook is hidden in his bag. Soichiro checks the bag and touches the notebook. However, he is surprised to find himself face-to-face with Rem, and screams in horror at the sight. Mogi goes over to console Soichiro and picks up the notebook, causing him to see Rem also.

L demands that they hand over the notebook to him. After finding himself being able to see the Shinigami, a new theory begins to form inside of his mind. Linking the diary the Japanese Task Force received from the Second Kira that had an entry stating that the owner and their friend would show off their notebooks in Aoyama, L begins to connect all of the clues, leading to the conclusion that there may possibly be more than one notebook. Meanwhile, Light takes the notebook from L in order to see what the fuss was about.

In an instant, all of Light’s memories featuring the Death Note come pouring back into him.

After a concerned L questions Light about the sudden scream, Light tells L that it’s unbelievable that a notebook can kill a person and then goes to his laptop in order to compare the names of the victims with the names in the notebook (a guise in order to hide his triumphant grin).

Light then says, “I’ve won… exactly as planned!”

Conception
The chapter's title "Scream" refers to the screams from Light, Mogi, and Soichiro. However Light's reason for screaming is more of a bigger impact on the chapter because it is more effective than the reasons of the other two. It is because Light regains his memories by toughing the Death Note, remembering that he is actually the real Kira.