The 'creature' kept him in the cave for many weeks. Bou said his Family went out searching for his Grandfather for a long time, but there was no sign of him anywhere, so they started to fear the worst. Then one night as the family were all in the house there was a faint knock on the door, it was Bou's Grandfather, their Son and Brother who had escaped from the Yeti. He said he was captured, kept and fed by the creature,  The Yeti would bring him roots, grubs, and some wild meat.  And then one day when the creature was asleep he crept out of the cave and escaped back to his home.