SCP-860, a.k.a., "The Blue Key" is a Safe-Class object. It is a modern metal key painted a shade of dark blue, with coordinates engraved into it. SCP-860's anomalous properties activate when it is inserted into any keyhole in any door located within the coordinates engraved on the key (Which periodically change). SCP-860 will be able to unlock the door but instead of leading to the other side, it will lead to SCP-860-1. SCP-860-1 is an extradimensional space between the two sides of the doorway. It appears to be a small forest clearing with an 80 centimeter wide footpath. On each side of the footpath is a brick wall of infinite width and a single door in the middle of it. The person who used the key must travel along the footpath as quickly as possible and make it all the way to the other end to escape the forest. They must also be wary to avoid SCP-860-2, the "The Guardian of the Forest.