61,009 Pages

The Cowper Key was a tool that Agnes Havisham was given as Torchwood Assessor which could shut down a Torchwood branch. Jack Harkness didn't know what it did, but suspected it disabled all their computer systems until Torchwood One could send someone to replace the employees. (PROSE: Risk Assessment)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.