Item picked up

[Streiff]

I finally figured out Puzzle 3. o_O

 

My next problem is the statement "A gleam of metal on the floor catches your eye, and you quickly pocket the object."

What is the object? Am I suppose to have it in my possession when I check my items or is it something that might show up later?

[Superfly]

This item was never revealed to us. Hopefully it will come into play later in the plot.