She puts pencil to paper and a small world takes shape in shades of gray. Carson Ellis has illustrated album covers, posters and eight books, including the children’s fantasy-adventure series The Wildwood Chronicles in collaboration with husband/musician Colin Meloy of the Decemberists. They and son Hank, 6, live in a 1908 farmhouse on a densely forested hill near Portland. They converted the garage to studios. What had been a plywood loft accessed by a ceiling hatch is now her light-filled workspace where militant moles, ragtag coyotes and an adventurous girl named Prue are realized on paper.