Not sure this I/A souterrain is on TMA, though the 'Amazon House' folklore is. Falling in love with island life is something we all do but it is a hard way of life, St Kilda's history proves this. Tourism in the 19th century brought disease with it as it does to many indigenous people around the world. It will not happen now, but are we not stressing the inhabitants of these places when we visit? We definitely alter their history that is for sure.

http://www.scotlandsplaces.gov.uk/record/rcahms/9697/st-kilda-hirta-village-bay-house-fairies/rcahms