Masters of Spacetime (Dr. Dimension, book 2) by David Bischoff and John DeChancie

Masters of Spacetime (1994)
(The second book in the Dr. Dimension series)
A novel by David Bischoff and John DeChancie

Used availability for David Bischoff's Masters of Spacetime

See all available used copies of this book at: Abebooks UK or Abebooks US