Sarah saw that Sam was nervous. “We could always do a little research first,” she said. “Good idea,” said Sam.While looking at a book about mountain climbers, Sarah had another idea. “I’ll be right back,” she said. She returned with some string and a paper clip.“I’ll hook one end of the string up at the top,” she said. “Then I’ll drop the other end down for you to tie around your waist. That way you won’t have to worry about falling!”“I’m not worried,” Sam said as she started to climb. Soon it was his turn. He remembered he had read that when climbing he should not look down, so he didn’t!