An underground labyrinth once used by a secret police force could warp the mind and turn friend into foe. Stories: 1) Waverly Hills Sanatorium, Louisville, Kentucky, USA; 2) Porto Flavia, Masua, Sardinia, Italy; 3) Odessa Catacombs, Odessa, U... (more)kraine; 4) Hario Wireless Telegraph Station, Sasebo, Japan