Notes
Up the Line, a standalone novel by Robert Silverberg.

Also published as a two part serial in Amazing Stories (July and September 1969).

A series of six books inspired by Up the Line and set in the same universe were published as Robert Silverberg's Time Tours:

• The Robin Hood Ambush (1990) by William F. Wu
• Glory's End (1991) by Nick Baron
• Timecrime, Inc. (1991) by Debra Doyle and James D. Macdonald
• The Dinosaur Trackers (1991) by Thomas Shadwell
• The Pirate Paradox (1991) by Greg Cox and Nick Baron
• Caesar's Time Legions (1991) by Jeremy Kingston

Publisher's Blurb – Lower Cover
Time travel spelled problems for the couriers of the Time Service. Shuttling backwards and forwards over the centuries they had to be wary of creating paradoxes – like meeting themselves watching the sack of Rome, or sleeping with their own ancestors.

Of course, it also gave them the chance to amass wealth by the discreet use of their prior knowledge. The penalties were fierce and the Time Police implacable in their pursuit of lawbreakers. But it was still worth taking the risk.

Jud Elliott took it when he met the marvellous transtemporal paradox called Pulcheria. He couldn't resist her charms – the effects spanned generations, and set the Time Police on his trail!

UP THE LINE is one of the best time travel tales ever written, it's Robert Silverberg at his brilliant best.