Femi is a gnome who plays a role in The Grand Tree quest. She can be found outside of the gate leading into the Tree Gnome Stronghold. If you helped her during the quest, she will help you access the Tree Gnome Stronghold later for free when you are unable to. If you did not help Femi with loading her packages, she will let you in for a fee of 1,000 coins.
Femi is the solution to the medium anagram clue: ME IF.