The Flight of the Horse — Larry Niven

MISSION ACCOMPLISHED? WELL. SORT OF...

"Get a horse!"

That's what his boss told him. And off Svetz went with the best intentions in the world.

But finding a horse, especially when you've never seen one, was no easy matter, as Svetz quickly discovered.

Undaunted and ready to set off again, Svetz headed into the past on another assignment: Bring back a sperm whale.

And he tried, he really did.

Then--when he thought nothing else could possibly go wrong--somebody...or something... hijacked his time machine!