For , the "piece" you're likely looking for is one of the iconic magical artifacts recovered or protected by the team. This series centers on an ancient organization hidden beneath the Metropolitan Public Library dedicated to protecting the world from secret magical realities. Key artifacts or "pieces" featured in Season 1 include:

: A magical piece featured in the fifth episode that brings chaos to the group.

: One of the powerful artifacts the organization is dedicated to recovering.

: Featured in the series premiere, this artifact is the target of a mission by Colonel Eve Baird and Flynn Carsen.

: A powerful magical object central to the Season 1 finale that has the power to rewrite history.

: Another ancient and dangerous artifact protected by the Library.

: The legendary sword of King Arthur, which plays a critical role in the first two episodes and is used by Flynn and the Serpent Society.