Locke & Key, Vol. 5: Clockworks

Hill, Joe and Gabriel Rodriguez. Locke & Key, Vol. 5: Clockworks. 2015. 160p. 9781613772270.

The history of the Locke house is revealed as Tyler and Kinsey get their hand on a time traveling key. They discover the origins of the gate in the caves under the sea, and they find out that the keys themselves were crafted out of the metal that the demonic entities transform into when they enter this world. They witness the efforts of Ben Locke to close the gate forever by designing an ingenious systems of locks crafted from the very metal that comes from the other side. Ben Locke's own history is also a tragedy, with his parents hanged for harboring rebels who remain on the property in the caves, and who first discovered the gate. 

They also witness the role their father played in this drama when he and his group of friends opened the gate so that they could experience the last key before the power imbued in them made them forget. It is at this time that the entity that the Locke children knew as Zach Wells came across, and possessed Lucas Caravaggio, also known as Dodge. Two friends were lost that day, and the rest of the group was never the same.

As Tyler and Kinsey travel through time, Bode, who is now possessed by Dodge, continues his search for the Omega key that would allow him to open the gate in the flooded cave below the house, to untold consequences. With time running out, the siblings are a breath away from complete catastrophe.