Shark attack

Description:

You're trapped on the bottom of the sea in a tiny two-person submarine. Your air supply is running out, but before you can surface, you must find your way out of a maze of undersea caverns! You could become the greatest undersea explorer ever-- or food for sharks!

subjects: Plot-your-own stories,  Literary recreations,  Optical illusions,  Underwater exploration,  Stereograms,  Juvenile literature,  Mystery and detective stories