How could I forget!(Temper tantrum)

Disclaimer: All rights belong to Rick Riordan. I only own the OCs and parts of the storyline

A tall man with a cloak wrapped around his lean body stepped into a clearing in the dense forest. A mask hid his face from view. Thunder echoed around him to the point that it was deafening. Suddenly, light seemed to attack him in waves. There was an explosion, then silence. When the smoke cleared, the man was standing tall with his right hand raised. He flicked it, and the trees around him seemed to spontaneously combust. A portal appeared where the trees used to be, and the man stepped into it.