Haunted Halls: Green Hills Sanitarium - Version 12.2010 Explore a decrepit mental asylum and find your missing boyfriend in Haunted Halls - Green Hills Sanitarium! After hearing about some wrong doings at the asylum, your boyfriend, Tim, takes off to conduct an investigation of his own. As Tim dives deeper and deeper into the mystery, his letters to you abruptly stop coming. Set off to the Haunted Halls and find him in this incredible Hidden Object Puzzle Adventure game! Haunted Halls: Green Hills Sanitarium Play game from zapzep games!