This Rock is MINE! by Kaye Umanksy, illustrated by Alice McKinley is a blast! The graphic colors and shapes pop and really show the emotional energy of each scene. I love the bright playfulness of the colors! Having the characters so quickly engaged in their tussle over their rock meant that I wasn't prepared for frightening part as the huge heron claimed the rock (even though I knew something was coming). And having frog and toad reject their beloved rock so quickly meant they could be friends that much sooner, which I thought was great.