This novel is a little bit messy and all-over-the-place in terms of character development and even plotting, with characters "signing in" and "signing off" randomly throughout the novel. The uneven pacing with slow and longer-than-necessary storytelling (for an action-oriented novel) of this novel reminds me of "Phantom Night" ("Geny'a", 幻夜) - another novel with interesting premise (and also based on a disaster, natural in this case though) but somewhat tedious implementation at places. As a nuclear engineer by training, of course the overtly anti-nuclear spirit of this novel amuses me (especially since I already know Keigo Higashino cannot be a "pro-nuclear" after reading his "The Final Curtain" that also features a "radioactive waste cleaner" working in a nuclear power plant). Still, I really, really respect Keigo Higashino's efforts in depicting the nuclear industry (of Japan in particular) and the "Shinyo fast reactor", which is clearly inspired by the Monju sodium-cooled fast reactor in Tsuruga, which I coincidentally had chance to visit long time ago and thus could "verify" the authenticity of Keigo Higashino's version of this reactor. Even the accident scenarios imagined by Keigo Higashino (and his "villains" in this novel) are also deeply realistic, from the drop of a plane/helicopter into a reactor (keeping in mind that this novel was published in 1995, a full SIX years before the 9/11 attack that turned the attention of the nuclear industry to the safety of the reactor building and containment system against airplane impacts, to the immense radioactive release once the spent fuel pool of the plant is damaged (the Fukushima nuclear accident, where such scenario DID happen, only occurred SIXTEEN years later than this novel's release). Funnily enough, the slow pace of innovation of the nuclear industry, which has hardly changed for decades, actually helped this techno-thriller, as everything nuclear in this novel still exists today in the nuclear industry. The same thing cannot be said about the other tech aspects of this novel, however, since the outdated technologies with regards to computing, telecommunication, drone, detectors, and many others, which might be "modern" by early-1990s standard, really frustrate new readers of the 21st century like me, who are already used to much better technologies that can easily invalidate important key plot points of this novel. Still an interesting read, especially to a "nuclear person" like me, but still, maybe Keigo Higashino had better stick with his traditional detective/mystery novels instead of venturing into these action-focused techno-thrillers like this one.