Samari Knife

Long ago, in the times of old, the great wolves made a decision to protect the last remaining wolves from the ever-growing threat of the humans. That was when the valley of saber was created. it was meant to be a sanctuary of the four wolf packs-the Azka pack of the mountains, the Miza pack of the shore, the Vren pack of the plains and the Mishaki pack of the forest.
but centuries later, a war broke out among the packs for territory, food and their lives. in order to put an end to this war, the spirit and demon wolves created Ninjas. they were to watch over each of their packs and protect them.

however, the Ninja tribes were all wiped out by a mysterious killer, and on each of the bodies that had been found, there was always one word carved into their remains: LEAVE. and so the packs withdrew into their territories, fearing the killer who had earned the nickname สติของใคร (or sanity of none).
but an age later, the same method of killing is once again used, and now a young she wolf must discover what is silently tainting her mind and soul. oh! and why the Ninjas disappeared and that other (none important) stuff :D
I SUCK AT DESCRIPTIONS SO JUST READ THE DAMN BOOK!!