The Mystery of the Screaming Clock (The Three Investigators No. 9)

The alarm clock went off with the bloodcurdling scream of a woman in mortal terror!  Who could have made such a clock--and why?

The Three Investigators immediately set out to discover where the mysterious clock came from.  When they come across a run-down house in Hollywood, they find an entire room full of dreadful clocks--and time is running out!