Picture a sky <P>as big as all outdoors, <P>a fence disappearing over a hill, <P>a crow then appearing, <P>a boy looking up, <P>watching, wondering. <P>Not much more than a moment <P>but the meeting<P>lofts a rush of childhood questions—<P>27 in all—inspiring answers <P>as big as all outdoors. <P>Caldecott medalist Chris Raschka, <P>himself the boy perhaps,<P>has created a book in the sparest language<P> against the simplest setting,<P> to inspire in any young listener<P> the wonder of wondering.