But they needed money to buy passage on a ship to take them to Sancrist.

You seem unable to simply walk up to the ticket counter and buy passage.

Perhaps they could buy safe passage with such a tidbit.

"She's going to buy us safe passage to the place we need to go."

"How are we going to even get to the harbor, much less buy passage on a ship?"

Now she would have enough money to buy passage.

For all we know this shield bought us safe passage into town.

We could make enough to buy us passage away from here.

We have money saved, enough to buy passage to another island.

That's enough to buy passage for a woman and a child, isn't it?