You were Caspian's younger brother, and before you met the Kings and Queens of Narnia, the Tanners tried to kill you and your brother because your uncle had a son. Your teacher helped you escape, taking you directly into the forest.
You had Peter's sword, and Caspian had Susan's horn, which was used to call for help. These were some of the objects the Tanners stole from the Narnians.
When you reached the forest, you got lost, since you had never been there before, until your uncle's men found you, and you fell off your horse. Suddenly, two dwarves and a talking badger saved you.
But before they could help you, your brother used Susan's horn, bringing the Narnian kings, Peter, Edmund, Susan, and Lucy back to Narnia, uniting them all against the Telmarines.
A week later, since you didn't know how to fight very well, Peter started training you, but nothing was working, nothing was producing results.
Peter: "How could I make a man out of you?"
Very frustrated, not knowing what to do with you