Lucidstuck:swap!AU fanadventure (1)

>Speculate on the items you found. The handle of the large knife does look like your ruler, as well as looking like a thread knife. The kilt too, as the plates may have come from the needle plate. Perhaps your newly acquired items were made from the ones you're missing since they look rather similar? Either way, someone or something was in your room and put this together.

Seconding.

Well done rationalising that! &(^^)