The Rook -

: In this world, a "Rook" is a high-level administrator within The Checquy , a secret British agency that polices supernatural threats.

: It is the only piece that can perform castling with the king, a move used to protect the king and activate the rook simultaneously. The Rook

Based loosely on O’Malley’s book, this eight-episode series aired in 2019. : In this world, a "Rook" is a

In the wild, the rook is a member of the crow family ( Corvus frugilegus ). : In this world

: It moves in straight lines—horizontally or vertically—across any number of unoccupied squares.

The 2012 novel The Rook blends urban fantasy with MI5-style espionage.

In chess, the rook is a "major piece" valued at , making it second in power only to the queen.