Thebes of the Hundred Gates
This story offers some time travel science fiction as two travellers from the 27th century go missing in ancient Egypt.
This is a pre-loved paperback of Thebes of the Hundred Gates, by Robert Silverberg. The book was first published in 1991 and this edition was printed in 1994. There is a minor dint to the top of the cover and a slight water stain on the first publishing page.