The Worm-hole
The Fledglings are building berry pyramids when one by one their pyramids disappear. Meanwhile, Slip and Slide, being industrious earthworms, burrow tunnels underground. Suddenly Slip and Slide are bombarded with berry-bombs from up above. The Fledglings investigate the mysterious disappearances while the earthworms investigate the random bombings and it’s not long before order is restored.