La Sfera: Libri Quattro in Ottava Rima

Alexandra Bergson was older than her brothers, Lou, Oscar & Emil and knew so much more of life. She had promised her father on his deathbed that she would care for them and guard the land too. Accordingly, she functions in an incredibly self-sacrificing way for her family for sixteen years. But when she has a chance for happiness with Carl Linstrum, her siblings Lou & Oscar start bickering.

It's mass market paperback size.