Sixteen-year-old identical twins Sabine and Blythe Braxton cope differently when their father dies unexpectedly, but unite to figure out mysterious Charlie and the crumbling mansion he moves into with them.

When their father dies from an unexpected illness, Sabine deals with it by "poeting" (an uncontrollable quirk of bursting into poetry at inappropriate moments) and her twin sister Blythe by obsessing over getting into MIT, their father's alma mater. Then their emotionally detached mother moves them into a ramshackle Bay Area mansion owned by a stranger named Charlie. When the sisters unite in a mission to figure out who Charlie is and why he seems to know everything about them, they discover their father died of an HIV- related infection, Charlie was his lover, and their mother knows the whole story. Blythe seems to take everything in stride, while Sabine chooses to learn all she can about the father she never knew. -- adapted from jacket

Ages 14.,Soho Teen.

Grades 10-12.,Soho Teen.