"I think you had better," said that composed young lady, whereupon with a shrug his lordship made the required surrender.
"Come you--all of you--aboard my ship," Don Miguel invited them, and strode out.
They went, of course.

For one thing the Spaniard had force to compel them; for another a ship which he announced to be sinking offered them little inducement to remain.

They stayed no longer than was necessary to enable Miss Bishop to collect some spare articles of dress and my lord to snatch up his valise.
As for the survivors in that ghastly shambles that had been the Royal Mary, they were abandoned by the Spaniards to their own resources.

Let them take to the boats, and if those did not suffice them, let them swim or drown.

If Lord Julian and Miss Bishop were retained, it was because Don Miguel perceived their obvious value.