'Timeslip!' by Murray Leinster

TIME BOMB

The experimental nuclear missile was sent through the Time Tunnel - but something went wrong, and it wound up buried in the capital of a great nation, over a century ago! Now, excavation equipment was moving toward the site - any day a bulldozer blade might set it off, destroying a mighty city and plunging the world into war! The experimental nuclear missile was sent through the Time Tunnel - but something went wrong, and it wound up buried in the capital of a great nation, over a century ago! Now, excavation equipment was moving toward the site - any day a bulldozer blade might set it off, destroying a mighty city and plunging the world into war! Time travelers Tony Newman and Doug Phillips had only one chance to head off disaster - to go through the Time Tunnel and make the accident "unhappen." The trouble was, there was a war on in the past - and the bomb was in enemy territory...

Released by:
Pyramid Books

Release date:
1967

Notes:
*Featuring Doctor Tony Newman, Doctor Doug Phillips, Lieutenant General Heywood Kirk, Doctor Raymond Swain and Doctor Ann MacGregor