Wandering Witch: The Journey of Elaina, Vol. 10 (light novel)

Elaina's nearing the end of her journey alongside her Master. This time she'll come across a lovelorn mermaid and a late-blooming nomad, a troublesome face from Fran's youth, a narrow-minded novelist, sisters searching for a new home, a magician living in a castle in the sky, a demon lurking in a book, and a magic doll modeled after the Ashen Witch and a broom, and the grief of losing an important friend, the charcoal witch. Various incidents detain the two and hinder the end of their journey.