Emily Brontë remains a mysterious figure and a challenge to biographers because there is limited information about her, due to her solitary and reclusive nature. Except for Ellen Nussey and Louise de Bassompierre, Emily's fellow student in Brussels, she does not seem to have made any friends outside her family. Her closest friend was her sister Anne. Together they shared their own fantasy world, Gondal, and, according to Ellen Nussey, in childhood they were "like twins", "inseparable companions" and "in the very closest sympathy which never had any interruption". In 1845 Anne took Emily to visit some of the places she had come to know and love in the five years she spent as governess. A plan to visit Scarborough fell through and instead the sisters went to York where Anne showed Emily York Minster. During the trip the sisters acted out some of their Gondal characters.