The aquarium's lights had painted the concrete gray into a fantastic shade of aquamarine. Rise Matsumoto, holding the Professor by her hand, led her into the shark exhibit. The animals looked huge compared to humans, and even bigger when viewed from underneath. The two of them approached the largest tank in the room.
A robotic shark, its slender body looking like a finned submarine, its teeth clamping down with a muffled metallic sound, swam up to the Professor. Its eyes lit up, acknowledging her presence, before it dashed back towards the surface to participate in that afternoon's show. As it swam away, the Professor noticed that there was a windup key on the shark's back.
"..." said Rise.
The Professor only caught the word "shark" from her speech. The robotic one had sent out a signal to the rest of the sharks in the tank. A young one swam down and pressed its nose against the glass. The Professor did the same, her hands appearing white against the pane. Rise bent down and offered to hold the Professor on her shoulders.
The two of them looked upward. Above that young shark was a shiver of sharks of all ages, sizes and species, layered in rings that formed a tower towards the top of the water where the sun was shining. The young shark went off to join them. The Professor's eyes widened in delight.