Use the statement from J. K. Rowling's book series Harry Potter to answer the question. Harry Potter learns from Hagrid that he is a wizard, so he must leave his aunt and uncle's home to study magic at Hogwarts School of Witchcraft and Wizardry.

Which step in the hero’s journey does this represent?
The hero gets a call to action and goes from the known world to an unknown world.
The hero is tested and then goes through a transformation or change.
The hero meets and gets trained by a mentor.
The hero returns to the known world with new knowledge.