Nils falls, having taunted Martin too often to a looping, but the latter decides on his own to eat shiny red berries, which alas render him sick, spelling a delay too long for the migratory schedule. Wandering off, Nils meets and soon befriends immature elf Lina, who knows a cure. Alas, it's controlled by the evil black elf, who she and her ermine mount Herman are looking for to liberate her father. Nils offers help to search any underground access in the surrounding forest, which Akka refuses but has to anyhow when Nils sneaks off. Nils and Lina take on the black elf and liberate her father, who turns out to be the elf who miniaturized Nils, but now grants him a wish.
—KGF Vissers