Fiona first appears in "The Grim Grotto", when Violet, Klaus and Sunny Baudelaire enter the "Queequeg". Though she is not part of the Queequeg's "Crew of Two", she is the ship's head engineer. Fiona is the first non-Baudelaire that can actually understand some of Sunny's utterances. Later, Fiona goes with the Baudelaires into the Gorgonian Grotto to look for the sugar bowl, but when the four children come back, empty-handed, they find the "Queequeg" deserted; Captain Widdershins and Phil had been convinced by an unnamed woman to abandon the ship. Count Olaf then captures the submarine with his own, the "Carmelita", and takes the Baudelaires and Fiona to the brig to be tortured by the Hook-Handed Man, who turns out to be Fiona's long-lost brother Fernald. The Baudelaires and Fiona persuade Fernald to join them and help them escape. The Baudelaires escape, but Fiona and Fernald are caught and tell Esmé Squalor that they support Count Olaf. At this point, Esmé begins to call Fiona "Triangle-Eyes", due to the triangular shape of her glasses. Later, Fernald persuades Fiona to really be part of Count Olaf's troupe. Fiona, knowing that she is wrong, allows the Baudelaires free access to the "Queequeg" to escape. But she cannot go with them, out of loyalty to her brother, but before she rejoins Olaf, however, she kisses Klaus.