Tara, Cal and Sparrow are up against Selenba once again. This time the Vampire has stolen a unicorn's horn with which she intends to absorb the young Spellbinders' powers. But that's only the half of it! Henry De la Chasse manages to steal the unicorn from Selenba! Our three young Spellbinders must simultaneously locate the mythical animal and get rid of Selenba... who has absorbed Tara's powers!