Secret War in Portugal [1939-1945]
For SOE [British Special Operation Executive] 24 Land was the code name for Portugal

Sergueiew the lonesome traveller

It is not easy to find out references about Nathalie Sergueiew, the Russian-born agent that work for the XX Committee as "Treasure", about whom I wrote a book. 
Here you may find the part of her life which made her to travel, cycling, from Paris to Lebanon. A remarkable act of courage.