The snowflakes took on a crystalline form, eventually becoming large enough to cover the entire field of the riders' vision. Approaching the walls of ice crystals, the voice of the unseen scientist marveled, ""These tiny bits of snowflake crystal tower above me – like an enormous wall of ice. Can I penetrate this gigantic prism? And yet, this wall of ice only seems smooth and solid. From this tiny viewpoint, I can see that nothing is solid, no matter how it appears."" Indeed, it then became obvious to the Atommobile riders that the ice crystals were not solid, but a lattice-like structure that they pass through. ""And still I continue to shrink! What compelling force draws me into this mysterious darkness—can this be the threshold of inner space?""