Brenda the brave sets to climb a mountain which is 12,000 feet high. She plans to climb 3000 feet each day, before taking overnight rest. A mischievous mountain sprit, however decides to test Brenda's resolve. Each night, Brenda's sleeping bag, with her soundly sleep in it, is magically moved 2000 feet back down the mountain, so tht when Brenda awakes in the mourning she finds herself only 1000 feet higher than she was the morning before ! No one to give up. Brenda eventually succeeds, but how many days does it take her to reach the summit?