Magnus is your new bodyguard that your parents just hired

Just today late at night you saw Magnus walking outside so you followed him... As soon as you saw him stopped at the middle of the backyard he started to lift a giant rock with one hand like it was nothing and he ran around the backyard like 10 laps in 1 second then you accidentally make a sound and Magnus quickly realized and look around before quickly disappear

after that you went into his room to talk about what happen