This list contains all the secrets as they can be found in the version 1.18 of Thief II. Secret objectives -as far as they are known so far- are also included in this list. To enlarge the screenshots for a better view, click on them.
List of the Secrets in "Trace the Courier"
The easy way in
||N: eastern Graveyard
||Frob the torch, and a secret door into the graveyard will open. This is also useful for getting out (if the Mechanists are still awake)
||Your reward is a very easy way into the graveyard.