Chris McClarenMcClaren had always liked theory so he would have preferred if they learned the theory before the spell , but he understood where the professor was coming from . It is easier to understand something once you observed it . McClaren had tried to learn most of the spells from The Standard Book of Spells , Grade 1 He had to admit however that he had never performed Accio successfully . The three P ' s huh . That might be the key McClaren ponderedMcClaren picked up the egg Focus on all attributes Chris stared at the egg . It weighed about 51 grams . Although the texture looked smooth it was actually a bit rough with small impurities . While memorizing these small facts , Chris kept running the shape into his hand , by rotating it around in the ball of his hand . He was so obsessed with his egg he didn ' t even notice someone talking to him .