The Impossibles, because these four Secret Agents, who amalgamate their spy-type Christmas presents, bungle every effort with casual shortsightedness. Like trailing a Post Office poster look-alike through the hardware store and discovering he's the owner's son. Or mistaking B. Beak's pop art hodgepodge for a time machine. Or (the most unkindest cut) rearranging the books in the Children's Room--by color. Johnny, George, Kim and Royston are virtually interchangeable, except for their names, and the three from the Girls' Friendliness and Helpful Club--who consistently steal their thunder--have more personality and spunk. Superable sleuths.