How to read Kara no Kyoukai/The Garden of Sinners
Kara no Kyoukai (literally translated The Boundary of Emptiness, officially translated The Garden of Sinners) is a light novel series by Kinoko Nasu, of Tsukihime and Fate fame. It was Nasu's first published work, originally published online in the 90s. You might know it most for the ufotable movie adaptations, or for the main character Shiki being playable in FGO.
This series predates Nasu's better-known Tsukihime and Fate series, and you can see inklings of ideas he'd reuse and refine in those works. Most prominent of these is the character of Shiki Ryougi, whose name, multiple personalities, and Mystic Eyes of Death Perception would all inspire Shiki Tohno of Tsukihime. This is also the series where Fate's famous Counter Force was first introduced.
The Kara no Kyoukai novels were Nasu's first published work, but have had a rough history in terms of translation to English. There have been bad and just straight up inaccurate attempts, and a publishing company that wanted to put them out officially went under before it had the chance, but now all these years later the series is finally completed in English!
Kara no Kyoukai is a supernatural mystery series set in Tokyo in the 1990s. Each chapter is an individual story (barring two-parters), but they all come together to tell a larger tale. It is written in anachronic order, not chronological order. As you read and skip through the timeline of Shiki and Mikiya's life, the story all starts to come together.
Volume 2: ShikiRyougiAdmirer, KMP, Yusuke, Manolo, Dullahan
Volume 3: QualityMistranslations/YHK
Without further ado, the novels:
Volume 1 (PDF / EPUB) contains:
Overlooking View
Murder Speculation (Part 1)
Remaining Sense of Pain
The Hollow Shrine
Paradox Spiral (Part 1)
Volume 2 (PDF / EPUB) contains:
Paradox Spiral (Part 2)
Oblivion Recorder
Murder Speculation (Part 2)
The Boundary of Emptiness
Volume 3 (PDF / EPUB) contains:
Volume 4 (PDF / EPUB) contains: