The question about the ending of 'The Babadook' book taps into a common point of curiosity, as many people know the film but are less familiar with the source material. It's important to clarify that 'The Babadook' originated as a 2010 Australian short film, which was then expanded into a feature film in 2014. There isn't a traditional novelization of the story, but there is a children's picture book prop created for the film, titled 'Mister Babadook', which exists as a diegetic artifact within the movie's world. The ending depicted in that prop book aligns directly with the film's conclusion.
In the film's final act, Amelia decides not to destroy the Babadook but to domesticate it. She descends into the basement, feeds it, and keeps it confined there. The final scenes show her and her son Sam tending to the creature, bringing it worms and living with its constant, muted presence. The prop book's ending mirrors this: it shows Amelia and Sam in the basement with the Babadook, now a tamed, if unsettling, part of their household. The monster isn't gone; it's managed.
So, what's that ending really about? On a literal level, it's about choosing to live with trauma rather than pretending it can be eradicated. The Babadook is a manifestation of Amelia's unresolved grief over her husband's death, her resentment towards her son, and her profound isolation. You can't just 'get over' that kind of pain. The ending suggests that healing isn't about killing the monster of your grief, but about acknowledging it, making space for it, and learning to function despite its presence. You feed it just enough to keep it quiet in the basement, but you never let it upstairs into the light of daily life. It's a far more psychologically realistic, and frankly, haunting, resolution than a simple exorcism would have been.
The final image of Sam, now older, preparing to take over the feeding duties, implies that this management of inherited pain and mental strain is a cyclical, almost familial responsibility. The ending strips away any fantasy of a clean victory, leaving you with the chill of a perpetual, negotiated peace. It’s that lingering, uncomfortable truth that sticks with you long after the credits roll.