It's hard to describe the feeling. And I knew from Horus's memory that this kind of union was very rare-like the one time when the coin doesn't land heads or tails, but stands on it's edge, perfectly balanced. He did not control me. I did not use him for power. We acted as one.
Our voices spoke in harmony. "Now."
And the magic bonds that held us shattered.
My combat avatar formed around me, lifting me off the floor and encasing me with golden energy. I stepped forward and raised my sword. The falcon warrior mimicked the movement, perfectly attuned to my wishes.
Set turned and regarded me with cold eyes.
"So, Horus," he said. "You managed to find the pedals of your little bike, eh? That does not mean you can ride."
"I am Carter Kane," I said. "Blood of the Pharaohs, Eye of Horus. And now, Set-brother,uncle,traitor-I'm going to crush you like a gnat.

Rick Riordan