Hi,
I've read two books by Jose Luis Sampedro and fell in love with both.
"La Vieja Sirena" is a 700 page long book, and it takes a while to get into it but then ...
"La Sonrisa Etrusca" was also a fabulous novel.
K
I realize the books I recommended was not necessarily what you were looking for as the Sirena is placed in ancient Egypt, while the other one is about an older man. But still worth reading!