Fiona is a volatile friend of the Baudelaire siblings in The Grim Grotto. She is a mycologist,which means she studies mushrooms, and has an impressive collection of mushroom books. All of the Baudelaire siblings like her, especially Klaus, who seems to have a crush on her. Fiona has a brother named Fernald that is revealed as the hook handed man, and briefly joins Count Olaf to be with him. Captain Widdershins is her stepfather and her stepbrother is Fernald, who is the hook-man in Count Olaf's troupe.
Fiona is about 14 or 15 and wears glasses. She is nice and helpful, and likes to read like Klaus.
Dr.Montgomery was the Baudelaires' second guardain in the Reptile Room. His Real name is Montgomery, Montgomery and he loves reptiles and has a collection of them!!!