The Money Machine Author:Keith Robertson Neil and Swede live in a suburban area of New Jersey. Already they have earned a modest amount of publicity in the local paper by solving a couple of cases as the Carson Street Detective Agency; and when summer vacation starts they are only too glad to find themselves involved in a new mystery. Treasury agents are hot on the trail of a counterfe... more »iting ring that is making and circulating phony twenty-dollar bills. Neil and Swede volunteer their services with startling consequences.« less