Sam began to head toward the binoculars, but found that he couldn’t move in their direction. It was as if there were an invisible wall between Sam and the binoculars, and he couldn’t break through it. Instead, he found his arm reaching toward the hats. But I don’t want a hat, he said to himself. I want a set of binoculars! His hand, however, seemed to have other ideas. It reached, not just for the hat at the top, but for one several hats down. It looked older than the others, which were all crisp and new.