When Calder Pillay and his friends Tommy and Petra travel to England, they discover a mysterious sculpture by artist Alexander Calder in the village of Woodstock. After the sculpture disappears and Calder himself vanishes, the friends must use their puzzle-solving skills and knowledge of art to unravel the mystery. They explore secret tunnels, decode hidden messages, and face a dangerous adversary who wants to keep the village's secrets buried. This thrilling adventure shows how art, friendship, and clever thinking can solve even the most baffling mysteries.