Gwen Grayson: I went through puberty twice for this?!
Will: Oh My God...I made out with an old lady.
Principal Powers: I'm not Wonder Woman, you know.
Mr. Grayson: You're not that boy with the six hands, are you?
Will Stronghold: Just two.
Mr. Grayson: Well keep them to yourself.
Gwen: I'm a technopath. I can control technology with my mind.
Will Stronghold: Wow. All I can do is punch stuff.
Mr. Medulla: Yet he'll be the one on cereal boxes. Show me the justice in that.
Warren Peace: Did you want me to heat that up for you?
Layla: Warren, we're not supposed to use our powers outside of school!
Warren Peace: I know, I was just gonna stick it in the microwave.
Answer: Will took Gwen to the Secret Sanctum. Later it's revealed that Gwen is really Royal Pain and since she saw the location of the Secret Sanctum, she would have told Speed, not Lash, as his super speed would be able to get him in and out without setting off the alarm. If Lash had tried to get into the Sanctum, he would have been caught.
He entered while Gwen was still visiting for the first time before she left.