This is a bonus cache for The Secret City Adventure Lab. You can play it here, or by scanning the QR code.

The Woolwich Royal Arsenal has a 500-year history as a place where weaponry was developed, tested and manufactured. From its beginnings as a dockyard making ships for Henry VIII, it can claim a pivotal role in shaping the course of global history. It played an important part in developing the technologies of the Industrial Revolution and was central to British efforts in The First World War. The Royal Arsenal was known as the Secret City, a mysterious place, heavily guarded and surrounded by high walls and electric fences. It was a place of top-secret military operations, where the latest weapons and cutting-edge technology were developed and tested in utmost secrecy.
The AdLab provides a brief historical tour of the area, via some of the armaments which provide a reminder of the area’s past.
A more in-depth history, through the ages and covering many facets of what went on in The Secret City here can be found on www.royal-arsenal-history.com
To find the cache, use the numbers revealed in the journal of the AdLab. It can be found at:
N51 DC.EBD E000 0A.DCD