I am  not entirely happy with The Investigation although it is quite well written and keeps the reader in suspense. The ending, a departure from the literary genre, addresses certain philosophical issues by showing possible explanations and courses of events. The Chain of Chance (Katar) seems in this respect a better work because it is more credible. Even in the categories of "naturalism" and "naive credibility" this second novel seems "better made". My attachment to this idea results from the fact that I was always interested in the role played by pure chance, coincidence and fate.