Four hilarious stories, two inventive brothers, one irresistible beginning chapter book—now in paperback! In this heartwarming follow-up to Laurel Snyder's award-winning Charlie & Mouse, the two brothers enjoy a special visit from their grandpa, Grumpy. Follow along as they discuss being medium, pounce each other, sing the wrong songs, build blanket forts, and more. Paired with effervescent illustrations by Emily Hughes, this touching, funny celebration of imagination and bonding will enchant readers young and old.