Their past connection explains both Zoe's transformation and Frances's emotional struggle.
Frances realizes that the Boogeyman is her old imaginary friend Zoe, whom she stopped believing in when she decided to grow up.
They become companions in a continuing mission beyond Frances's immediate crisis.
Larry and Zoe leave together to deal with another Boogeyman after Larry receives a new order.
Zoe and the Boogeyman are two states of the same character.
Frances discovers that the Boogeyman attacking them is actually her former imaginary friend Zoe.
Explore the full interactive character relationship map of Don't Look Under the Bed