Assuming that's what happened, but it seems like the most likely option. [Nudges Zoro with his elbow.] Check your journal, see if anyone else has said anything. I mean, I really fucking doubt someone came by and snatched both of 'em up in the middle of the night, we would've noticed.

[He pauses, taking the time to finish off his cigarette.]

Plus the fact that Robin-chan is gone, too... She would've said something if they went anywhere.

[Scowls, stubbing out the cigarette against the rail and then flicking it out over the water. He watches as it drifts down and vanishes in the choppy waves, and then his brow furrows.]

...Unless there was some kinda shitty accident.