Death Note volume 5 left us seeing the power of Kira being used (or rather abused) by a large finance company 'Yotsuba', and with both Light and Misa convinced of their innocence as they have no recollection of ever being Kira themselves.
Frustratingly the team have no idea who in the company is Kira, but they hope to get more clues after installing surveillance cameras in the board room. They are shocked when they secretly watch a meeting where the directors casually decide who is next to die in order to benefit the company. This seems like a new level of evil, when Light was Kira you were able to relate or at least understand that he considered the killings necessary in order to fulfil his idealistic vision of a better society, but things have changed and the are killings are now purely for financial gain.
The moral questioning which has been a strength of the Death Note series is evident in this volume. Should the team let the board members kill in order to aid the investigation? Or should they intervene? Interestingly, it's Light who is most vocal in taking the higher moral and is very clear about his belief that human life is of paramount importance. The previous book seemed to lack the spark of the first four but once again we are treated to great interaction between Light and L. Light demonstrates incredible analytical skills and speed of thought, he even makes some deductions before L. This leads to L making the startling claim that Light should be his natural successor should L die during the investigation. But L always seems to be playing games, things are never as they seem between these two 'friends' - and suspicions still exist with Light offended that anyone could still think he was Kira. Tensions resurface and the two do battle again.
There's a sense of urgency about the case after quick thinking from the investigation team leads to a temporary delay in the killings, they have a month to find Kira and a new recruit to help them - Misa Amane. Although present in the books for a while now she finally gets to have some meaty sub-plots of her own and the progress of any new findings are pivotal on her actions.
There are no colour pages in this volume, but I tend to see those as more of a bonus rather than something I expect in Death Note. The artwork remains at a high level and there are some excellent double page images between chapters. There was a glaring spelling mistake at one point (a car is referred to as having "tinted widows"!) but it's a rare error in a series of books which don't tend to suffer from poor translation.
In a nutshell: An interesting volume where L's friend tally increases to 2! There's also some pseudo-religious debate where L dismisses the idea of a God (it's good to see such an exploration in a series which involves Shinigami), and speaking of Shinigami - we get to see more Rem after a bit of a Shinigami absence. This book sees a return of some of the battle of wits between Light and L and the book culminates in an intense and frantic ending.