Original cover art created c. 1993 for one of the science fictional Riverworld novels by Philip Jose' Farmer.  Keith was commissioned by Harper Collins to do all five of the covers, but this one - planned - was apparently not used.    The dramatic scene features a dirigible blowing up/ crash landing against a mesa-type mountain reminiscent of Ayer's Rock.  Keith made a model of an airship to work from, to produce the highly realistic image -   handpainted in acrylic on illustration board, 23" x 17" and signed by the artist.