The author would give the story a new antagonist: a massive non-corporeal space amoeba.

Outnumbered, she whirled to face the new antagonists, never backing down.

They, potentially, were new antagonists; The Shadow had taken a long chance with his sudden invasion of their meeting place.

Some of the thieves detached themselves from me to deal with this new antagonist.

The new antagonists are three vampires that have taken control of Dracula's castle.

In like manner the two new antagonists were seconded, and soon a fourth battle was underway.

He side-stepped two new antagonists, and dodged into the door of a room.

The lava monsters are the new antagonists of the 2010 Power Miners line.

It would seem they were regarding this new antagonist with astonishment.

Sir Charles turned on this new antagonist like a wounded bull.