Footfall
A gadget used by lots of spies is the footfall detector. It senses vibrations as we walk.
There are a whole bunch of footprints here, but only one of them matches the shoe. Can you detect which one it is?
A gadget used by lots of spies is the footfall detector. It senses vibrations as we walk.
There are a whole bunch of footprints here, but only one of them matches the shoe. Can you detect which one it is?