He decides to use a spell from the Book of the Damned as a way to neutralize Lucifer from leaving the Cage .
They contact Crowley ( Mark A. Sheppard ) who may know how to enter .
Crowley decides to use a spell from the Book of the Damned as a way to neutralize Lucifer from leaving the Cage .
They contact Crowley ( Mark A. Sheppard ) who may know how to enter .