Anyone remember this book and its companion, Men Hunting Things? What I am really looking for is a short story I read about 20 years ago.
Plot:
Peaceful Earth gets a signal from space that turns out to be a powerful battlecruiser. Captain of said is very apologetic saying they are chasing a horrible dangerous planet wrecking creature in another ship that is headed Earth's way. They beam pictures of the creature and its destruction to Earth and advise that the planet prepare its defenses.
The US tracks the horrible creature's ship as it lands on a small Caribbean island, while the crew of the battlecruiser skidaddle, saying sorry
this will be too horrible for us to watch – its your problem now. The US sends a task force that is going to nuke the island, but finds out at the last second there is a small scientific team on the island.
Cut to the science team, who having heard a warning to evacuate the island, are trying to board a boat. Their cat gets loose and starts hissing and spitting and runs off into the jungle, where they hear a horrid cat-fight. Moments later the cat returns, dragging along something dead, which turns out to be the horrid creature – it is only about 18" tall.
The last scene is some sort of radar plotting area where they go "Sir, that alien ship – it was only like 3 yards long.
Was this story in Things Hunting Men?