5F

Juan saw the cars and thought he’d made a mistake. Did you? Why?

nope - I'd already decided this was a dry dock. I thought the cars were being used as a screen (as in a big U shape) and the work was behind/between them - didn't think of a separate compartment

I felt like this close to the end of the book it would be the dry dock.

I agree with >2 bhabeck: & >3 Olivermagnus:

No. I didn't think Juan made errors. I had more faith in him than he had in himself.

The cars made the ship look like a car carrier but the cars were rusty cars that had been sitting on the ship for a long time and was being used as camouflage.