The cache is not at the posted location, but DO go there to launch the Wherigo cartridge. Note: the Wherigo cartridge is playable and completable 24/7, as is the final cache location. BYOP!
You will play the 3-zone Q&A cartridge around the grounds of the Tibor Rubin Library. You can play it any time - all the zones are exterior to the library and available 24 hours a day.
After you finish playing the cartridge, you will receive a keyword to enter in Certitude. Certitude will then give you the coordinates for the cache. The cache is also available 24 hours.
Download the Wherigo cartridge here
Click to download Wherigo cartridge.
After completing the Wherigo, enter keyword in certitude to receive the coordinates to the cache.