Melfice Sandbox
SCP-xxx: Amulet Pendant (amulet can mean a WHOLE lot of things) saves owner's life through teleportation (to anywhere and any time, randomly). After teleportation, owner needs to find amulet again, as it has teleported away itself within a 500 meter radius of owner's . Failure to find the amulet results in rapid aging on an exponential scale, starting after first week of not having found the amulet.
Pendant came in possession of Prof. Markus "Melfice" Silesius through somebody who died in his own time dropping on the middle of his desk.