Lilly is a long-tailed white mouse character who behaves like an indulged, reckless young human. Before Julius was born, Lilly was the best big sister in the world. Her crown, cape and red cowboy boots convey her self-proclaimed superiority in a world she thinks now revolves around what is a disgusting baby. Readers of CHESTER'S WAY (Greenwillow, 1988) will recognize Lilly even in her Groucho glasses; they'll know she will think of ways to handle the challenge. And she does - usually going to the edge with a very naughty, original flair which typically lands her in the "uncooperative chair". Remarkable pacing earmarks a text well integrated with art created by a combination of watercolors and black pen. (Ages 5-8)