Agatha Christie,
The Adventure of Johnnie Waverly
“ Let us make our deductions together. What points strike us specially as being difficult?" "There is one thing that strikes me," I said. "Why did the man who kidnapped the child go out by the south lodge instead of by the east lodge where no one would see him?" "That is a very good point, Hastings, an excellent one. I will match it with another. Why warn the Waverlys beforehand? Why not simply kidnap the child and hold him to ransom?" "Because they hoped to get the money without being forced to action." "Surely it was very unlikely that the money would be paid on a mere threat?" ”
