For ten points, name this author that imagined conversations between Marco Polo and Kublai Khan in his Invisible Cities and wrote If on a Winter's Night a Traveler.
In one of this author's works, Isohar is the target of Raimbau, due to a system of "besmirched honor," which causes Torrismund to be sought by Agilulf. In a story, a game of marbles is played with hydrogen atoms, while another sees monthly voyages to the moon done by Mr. Vhd Vhd. In addition to The [?] Non-Existent Knight and Cosmicomics, this author created a man who spies on a cheese shop, Mr. Palomar, and in another work a canon ball halves Merdado. In addition to The Cloven Viscount, he wrote about tarot cards being used in a Tavern of Crossed Destinies. "Without Fear of Wind or Vertigo," is a chapter in a book by this author that begins with the reader returning a book. For ten points, name this author that imagined conversations between Marco Polo and Kublai Khan in his Invisible Cities and wrote If on a Winter's Night a Traveler.
In one of this author's works, Isohar is the target of Raimbau, due to a system of "besmirched honor," which causes Torrismund to be sought by Agilulf.
Italo {Calvino}