She was for getting into the coach ahead.

They called her back." Almost all the other cars were empty except that one, but, whether because humans are like sheep and herd together instinctively when afraid, or because the train crew ordered it, all six compartments of the middle first-class car were now occupied, with Mabel Ticknor alone in the front one.

Nevertheless, Yussuf Dakmar and four of his companions started to climb in by the rear door.

The sixth man lingered within earshot of the officers, presumably to pick up further suggestions.
So I got in at the front end and met them halfway down the corridor.
"Plenty of room in the car behind," I said abruptly.
They were five to one, but Yussuf Dakmar was in front, and he merely got in the way of the wolves behind him.

The sixth man, who had lingered near the officers, now entered by the front end as I had done and called out that there was plenty of room in the front compartment.
"There's only a woman in here," he said in Arabic.
And he set the example by taking the seat opposite to Mabel.
It would have been easy enough to get him out again, of course.