Basement of Secrets

The Basement of Secrets is a hidden area, accesible using the world map when standing at the east side in the Chamber of Knowledge.

Directions
Go into the Chamber of Knowledge, accessible through The Lost Temple of Zios. It is the building next to the Falling Phantoms game. Walk all the way to the end of the corridor and click on the world map. Click in the empty forest area under Appondale. It may not work on the first attempt, but keep clicking around until you do reach the destination.