Foster has adapted 3 episodes from the Saturday morning cartoon spinoff of the original _Star Trek_ as short stories.
"The Practical Joker" (episode 19, screenplay Chuck Menville) For once, the dangerous phenomenon the ship passes through in space affects the ship's computer rather than the crew, turning it into a dangerous practical joker. The screenplay writer also wrote the other major AI episode of the animated series, "Once Upon a Planet".
"Albatross" (episode 20, screenplay Dario Finelli) A planet where McCoy ran a vaccination program against Saurian virus many years ago wants him for mass murder - they blame him for having started a plague that killed most of their people after his last visit.
"How Sharper Than a Serpent's Tooth" (episode 21, screenplay Russell Bates and David Wise) (The full quote continues 'is a thankless child', from Shakespeare's _King Lear_.) As in 'Who Mourns for Adonais?' an ancient god, this one from the Mayan/Aztec pantheon, longs to regain human worshippers.