LeeNo wrote:With only 5 keys, trial and error only takes a few seconds.
Except these aren't keys... they are more like picks. It can take a little poking and prodding around to find just the right spot, it's (sometimes) not just a matter of sticking them in and turning. I do have skeleton 'keys' for some warded locks (ie common master padlocks) that work just like keys, but these picks sometimes take a bit more than that (albeit not by much).