| Spoiler warning!|
This article contains plot details about an upcoming episode or an extremely recent episode. Read at your own risk!
|... And the Trial of the One|
|Written by||Tom MacRae|
|Original airdate||January 31, 2018|
|Previous Episode||... And Some Dude Named Jeff|
|Next Episode||... And the Echoes of Memory|
It's time to choose The Librarian who will be tethered to Baird, but no one can decide, so The Library comes up with a trial of worthiness, during which the Librarians will be reduced to their most primal selves and abandoned in nightmarish landscapes.
- Rebecca Romijn as Eve Baird
- Christian Kane as Jacob Stone
- Lindy Booth as Cassandra Cillian
- John Kim as Ezekiel Jones
- John Larroquette as Jenkins