"When Ruth falls down and scrapes her knee, a passing ambulance takes her and her sister to the hospital. There they wait, and wait, and wait -- until they discover that the hospital bed has buttons that make it go up and down and back and forth and side to side! The girls bounce on the bed and try all the buttons until they find one that makes the bed go wild and swallow them up, with just their hands sticking out. Three doctors examine the hands with increasingly ridiculous machines until the janitor comes by and makes the bed release the girls and swallow up the doctors."-- Provided by publisher