Why is this chapter called the evil spell bridge to Terabithia capter 9?

The chapter is called "The Evil Spell" because it describes a turning point in the story where the characters face a challenge that tests their friendship and bravery as they confront their fears in order to overcome obstacles in the magical world of Terabithia. The term "spell" suggests a sense of magic or enchantment, highlighting the fantastical elements of their adventures.