Schoolgirl detectives Daisy Wells and Hazel Wong are at Daisy's
home, Fallingford, for the holidays. Daisy's glamorous mother is
throwing a tea party for Daisy's birthday, and the whole family is
invited, from eccentric Aunt Saskia to dashing Uncle Felix. But it
soon becomes clear that this party isn't really about Daisy at all.
Naturally, Daisy is furious. Then one of their party falls
seriously, mysteriously ill - and everything points to poison. With
wild storms preventing anyone from leaving, or the police from
arriving, Fallingford suddenly feels like a very dangerous place to
be. Not a single person present is what they seem - and everyone
has a secret or two. And when someone very close to Daisy looks
suspicious, the Detective Society must do everything they can to
reveal the truth . . . no matter the consequences.