Mists of Iga (Sons of Yokai Book 1)

1581, In the midst of Japan s warring states, a group of four shinobi have just become some of the few survivors of a scattered tribe. The legendary warlord, Nobunaga Oda, a man obsessed with the unification of Japan, is responsible for the devastation upon the shinobi s home village. In order to avenge their clan, two young brothers make a pact with the former comrades of their father. Unaware, the shinobi are dragged into a mysterious journey in search of a legacy left by their departed mentor that will change the destiny of a nation. --Amazon