We know nothing of how she got to Helsingfors

She stayed for a week at the British Embassy in Petrograd, where her escort was obliged to leave her, so the rest of the journey was undertaken alone.

We know nothing of how she got to Helsingfors, but I believe it was at that place that she had to walk some considerable distance over a frozen lake to reach the ship. She was hobbling along, leaning heavily on two sticks, and just as she stumbled and almost fell, a young Englishman came up and offered her his arm.

Sarah Macnaughtan: My War Experiences in Two Continents