Manhattan’s most notable books:
The Vatican Billions
Vietnam, Why Did We Go?
The Vatican's Holocaust
The Vatican-Washington-Moscow Alliance
Murder in the Vatican
Catholic Terror in Ireland.
Three of these books can be read online:
The first at https://archive.org/details/TheVaticanBillions
The second at http://www.reformation.org/vietnam.html
The third at http://www.reformation.org/holocaus.html