Fantasy Novel? Girl Vists an Island with a Volcano and meets her lost? Twin or a doppelganger

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Fantasy Novel? Girl Vists an Island with a Volcano and meets her lost? Twin or a doppelganger

1terriblepoet
gen. 23, 11:48am

Hello,

Looking for a book for a friend who can only remember brief details. It is possibly Young Adult or Adult, from the first person narrative. Cover was a field or a meadow, with a castle in the background, maybe grey in colour. Published before 1990’s, possibly from the 1950’s – 1970’s. Was at least in hardback.

Story concerns a young girl and opens with her taking a train journey. The train was an older type train, not a modern one possibly. She meets another girl, on an island, who is either her (unknown?) twin sister or some sort of doppelgangers. There is a volcano on the island, which explodes, and kills one of the sisters.

Many Thanks for you help in advance. Any clues would be most welcome. Was read about 30 years ago – late 1980’s early 1990’s.