The neon with the sequence of Fibonacci numbers and the igloos, made with different materials, are the hallmarks of Mario Merz, a leading exponent of the Arte Povera movement. One of his most famous igloos will arrive at the Royal Gardens surmounted by a deer, a trait d'union with that of the roof of the Stupinigi hunting lodge. On the deer there is a short sequence taken from Fibonacci to represent the stylistic code of the author. The work recalls hunting which has always been one of the favorite pastimes of the nobility of the House of Savoy and the capture of the deer was reserved exclusively for the sovereign. On the walls of the rooms of the Royal Palace there are many depictions of hunting trips, exemplary those of Cignaroli.