Felix

Felix is a main character who comes in a little later. Although he was very important, he never got to narrate a chapter- but Bones later explained he was simply another illusion, which could allude to that.(Even though all the others that weren't Eagle, Lucky, and Silver that narrated chapters were also illusions. So....)

Although Felix doesn't have powers, he is a formidable fighter, due to intensive training along with his sister, Bronze, during their entire upbringing. He frequently had to quench his sister's bloodlust and rage, but he always felt sorry for her.

It is unclear whether he was raised or just joined Mountain Pack(Formerly Horizon Pack), but his alpha, Dewdrop hated him for no reason, even attempting to kill him at one point. He met Ember there, and they became fast friends. When he met Eagle, he left Mountain behind for good, including Ember.

He quickly bonded with Eagle, growing a strong bond in a very tiny window(about 5 minutes) that can only be made by knowing someone for years.

He feigned interest in Lucky, alluding his dorkiness to being in love with her(when really it was caused by a deep love for Eagle- and Eagle returned it). During the great Battle, he didn't trust Lucky until she said she loved him, despite them not really having a deep relationship.

In the unveiling, Bones revealed he was only another illusion, made in order to give Eagle a boyfriend and to drive the wedge in the romance of Silver and Lucky.