C an I have my prize?” the child wanted to know. (Marcel remembers him as being around 10 or so, but Marcel isn’t entirely reliable on such matters.) “Not until tomorrow,” Marcel told him. “You have to take your reading log home first and then bring it back in. Then you can have your prize.” There was a pause. “I want the rocket,” the child informed Marcel, nonplussed. “Can I have my prize now?” Today is the beginning of Marcel’s second week as a library volunteer. During his hours there, he is responsible for receiving children participating in the Albuquerque public libraries summer reading program warmly. He registers interested participants, stamps completed reading logs and hands out prizes from a box under the table…