This bonus cache is associated with the "Notts Labcache Pool" Adventure Lab project, which is a "lab-art" series located in the South Nottinghamshire village of East Leake right in the CENTRE of ENGLAND. It has been especially placed to celebrate the first anniversary of the launch of the series.
If you would like to take part in the project and create a set of labs to join the series, or just have some background information, please contact the Notts Admins via their profile or by direct email: notts.labcaches@gmail.com
Information on how to play Adventure Labs can be found at: Adventure Labs FAQ
The Award Message and Journal of one of the Ad Labs in the series will display bonus information on completion of each stage - collect the letters in the order given and enter this capitalised keyword (no spaces) into Certitude to reveal final coordinates and a hint for the bonus.
You can validate your puzzle solution with
certitude.