Mary Bold as Mentor
Eleanor is reflecting on the fact that her sister-in-law had given her good advice regarding the Stanhopes (i.e., that she should stay away from them), which she had wrongly ignored. Mentor is a character from Homer’s Odyssey who was Odysseus’ friend of old. Athena adopts his guise to give Odysseus’ son Telemachus advice and help. It is from this character that we get the English word “mentor” to refer to an advisor. [JC 2005]
Sources: Homer, Odyssey 2.