[He furrows his brow a little and reaches back to scratch his head.]

Probably where ever you last ... saw it? [How should he know, Jack? He doesn't even know where over half the things he cares about are. He sighs... then blinks.] ... Wait...

[Well, there is one place they could check. He suddenly gives a hopeful grin.]... I could take you to the Ship Yard, if you like! If it did come with you, it'll be there.