When I first tried to get answers to my question I was advised that I could get a train from Santiago to Lugo and a bus from Lugo to Triacastela. Alternatively, I could get a bus or train to Sarria, then a bus to Triacastela. But I can't find any trains from Santiago to Sarria or Lugo, and I can't find any buses from Sarria or Lugo to Triacastela. I have found there is one bus each day from Santiago to Sarria, leaving at 15:00 and arriving at 17:45. The pensión where I have a reservation told me that there is a bus from Sarria at 18:00 to Triacastela, but I can't find anything to confirm it. I could telephone the various bus stations, but I cannot hold a conversation in Spanish over the telephone (or in any other way). They don't seem to use email, where I could use Google Translate. I know I could take a taxi, but I'd rather use public transport if I can.