That it would prove of importance, of vital significance in solving the crime, Britz believed implicitly.

But, such are the complexities in all human things, that the possibility of error is never eliminated.

And in a criminal investigation a single error may destroy every chance of success, just as a single error on the part of the criminal may destroy all the safeguards which he has so carefully thrown around him.
At the Seventy-second street station of the subway Britz bade his companions good night.

Dismissing the Whitmore case and all other police business from his mind, he headed straight for his home, retired at once and fell into a deep sleep..