Reddit reviews Zaregoto, Book 2: The Kubishime Romanticist

Zaregoto book 2 has actually already been released by another publisher and was abandoned afterwards. As for verticals version, there's been no concrete confirmation I have found for further books being published.
https://www.amazon.ca/gp/aw/d/0345505786/ref=cm_cr_arp_mb_bdcrb_top?ie=UTF8

Zaregoto: Book1 and Book 2, Death Note: Another Note, and XXXHolic: Another Holic from the best mystery author IMO, NisioisiN


Also note, that NisioisiN is the author of the monogatari series (Bakemonogatari, Kizumonogatari, Nisemonogatari, Nekomonogatari, Kabukimonogatari, Hanamonogatari, Otorimonogatari, Onimonogatari, Koimonogatari, Tsukimonogatari, Koyomimonogatari, Owarimonogatari., Zuko-Owarimonogatari, Orokamonogatari, Wazamonogatari)

There are a lot of mystery/horror novels in syosetu.com, it's just nobody translates them, just like there are a lots of BL novels that aren't translated

EDIT 1: I would like to add Ballad of a Shingami series

EDIT 2: .Hack// Another Birth series

EDIT 3: Utsuro no Hako to Zero no Maria

Zaregoto 2 might be a fun choice, since it uses an unreliable narrator, which is an interesting device to think about. The author is more famous for his Monogatari series these days, but Zaregoto is just as good.

Although I suppose it's arguable whether it's a true light novel or not.

Edit: Obviously it helps to read vol 1 first, but vol 2 in particular is fitting for a discussion.