Everyone in Sandalwood thinks Patch Wickerwell works alone. But behind the loose boards of his crooked workshop lives a tiny family with a very big job. The Weedles — Burdock, Bramble, Thorn, Grammy Nessie, and young Thistle — mend the little troubles no human eye can see, while Patch leaves the little pieces no human hand can use. It is the best secret in Sandalwood. Then rain ruins the village seed stores, and Patch builds his biggest little machine yet: the Sandalwood Seed-Saver. Thistle, desperate to prove she is a real inventor like her father, swaps one heavy brass washer for a lighter button ring — and one borrowed part sends seeds, and her confidence, flying. Now Thistle must tell the truth, gather her family, and discover what helping really means: not grabbing the important part first, but staying after the clatter and making things right together. The Weedles of Wickerwell's Wall opens a hidden corner of the Mudpies Universe, where thimbles become stew pots, spools become tables, and the smallest hands keep the whole town turning.