Night Ops

Bansenshukai is a ninja manual written in 1679,This contains many espionage techniques of the Real Ninjas.I think all the people who want to develop their spying skills should read this book.

I've got a scanned copy of it, but no official translation. And given it's written in the Japanese equivalent of Old English, it's hard to find someone who can read it. Is yours translated?

Yes,A translated copy is available on internet,You can easily find it from mobilism.org or libgen.io .(Bansenshukai Book of Ninja)