I came to read this book knowing nothing of Yamada’s work, and never having seen the movie Shinobi: Heart Under Blade or read the manga Basilisk, which are both apparently based on The Kouga Ninja Scrolls. In fact, I was interested in this novel simply because the title reminded me of a fantastic animé called Ninja Scroll that I saw back in the ‘90s, and which recently popped back into my head for some reason, prompting an Amazon search for something similar to read.
This novel predates that animé by nearly forty years and, beyond the title, it appears to be completely unrelated storywise.
The Kouga Ninja Scrolls recounts the story of two mutually hostile clans of ninja who have been freed from an edict forbidding warfare in order to settle a succession crisis in the Tokugawa shogunate. Ten ninja from each clan must battle to the death to determine which of Tokugawa Ieyasu’s grandsons will become the next shogun. There is just one complication: the heirs to the leadership, Gennosuke of the Kouga and Oboro of the Iga, are in love and are intending to marry.
I’m not sure if this is a feature of the original Japanese work by Yamada, or an artefact of Geoff Sant’s translation, but this novel reads absolutely like a manga rendered into prose, with each panel described to the reader. This is not stylistically great, but it works pretty well for the subject matter of supernatural assassins battling each other in Edo-period Japan.
If I were to describe it in familiar western terms, it is rather like a group of X-men fighting another group of X-men - it really has that comic book style. In place of characterisation, the participants in the conflict are differentiated from one another by their ninja powers, so no reader will ever mistake it for profound literature.
Still, it does its job - there is plenty of entertaining combat and gruesome imagery, and plotwise, once you accept the daft premise of a succession being determined by a team deathmatch between magical assassins, it all makes enough sense to hang together.
I enjoyed it, and would recommend it to anyone wishing to while away a few hours on a long flight in a flurry of brainless-but-fun ninja action. And, if we are honest with ourselves, that means all of us.