Seven Keys

The seven keys are keys that belonged to seven knights who were ancestors to the Grimms. The knights worked for the seven families in the twelfth century. After sacking in the Fourth Crusade, they took a treasure back but decided not to give it to their benefactors. Instead, they made a map on the seven keys, and each knight took a key. The keys, when put together, reveal the location of an unknown treasure. The treasure is supposed to be an artifact so powerful that, if held by the seven Royal families, it would allow them to rule the world. According to Sean Renard, the Royals themselves don't know what the treasure is, but according to several legends, it could be either the prophet sword, the secret of alchemy, the secret to immortality, or the nails used in the  of  along with possibly even some pieces of the  itself. Renard also noted that it took the Royal families six hundred years and a great deal of bloodshed, even by their standards, to obtain just four of the keys.

Seen Keys

 * Nick's first key
 * Marie Kessler gave the key to Nick in.
 * Nick's second key
 * It was given to him by Rolek Porter in.
 * Nick's third, fourth, and fifth keys
 * Received from Felix Dietrich in.

Missing Key

 * 2 keys in unknown locations

Treasure Location
The exact location of the treasure is unknown, but Nick compared the partial map from his first key to an atlas, and the page from the atlas included the point where fifty-two degrees north latitude intersects the shoreline of continental Europe. When he showed Monroe, Monroe instantly recognized the map as a river in the northwestern part of the Swabian Circle, meaning the treasure was likely hidden somewhere in the Black Forest. After putting the partial maps from both of Nick's keys together, Monroe confirmed that the map definitely leads to somewhere in the Black Forest.

Behind the Scenes
fa:کلید