Crumbcastle: The Snackyard Siege by Christian Laniz

When a rowdy army of green peas rolls into the Snackyard determined to conquer every last treat, three unlikely heroes stand in their way. A cracked-open eggshell becomes their fortress, and a jelly warrior, a chocolate-cookie strategist, and a tiny candy scout must turn scraps and crumbs into their greatest defense. Packed with clever traps, wobbly walls, and pea-sized chaos, this is a sweet, funny tale about courage, teamwork, and holding your ground — one eggshell brick at a time.