One of Allingham's more unusual premises: two schoolboys discover the ability to read other people's minds using a special gadget. When one of them vanishes, detective Albert Campion becomes involved. An odd book, but I enjoyed it and would recommend it.
"Two schoolboys have discoverd a miraculous gadget that enables them to read other people's minds. Then one of the children vanishes-and Albert Campion is called in to crack the case. Soon the intrepid sleuth becomes snared in a sinister web of conspiracy, violence, and assassination-and in a lethal power play for control of a devasting device that could shatter the world!"
I did not enjoy this one as much as the other books. Too many characters and I probably didn't understand a lot of the non-American lingo. The world wide impact of a mindreading device was interesting.