Mchael Moorcock - " The Fireclown". Paperback as description

Life at the turn of the twenty-first century was civilised enough for the community within the underground City of Switzerland, seat of the government of the Federation of Solar Planets.  But now, from some unknown sector of the galaxy, the enigmatic Fireclown had come, captivating vast audiences with his infectious, delirious laughter and his mysterious symbolic fire.  Without warning, society is seething with political intrigue and unreasoning emotions, and to young Alan Powys falls the herculean task of heading off a world-shattering catastrophe and revealing the source of the Fireclown's powers.

A 1956 Compact paperback in fair reading copy condition.