Erin woke up in unfamiliar surroundings. The last thing he remembers before basically passing out was that he met with his friends at Lizzy's place. How come he is at a hospital right now?
"Thank God you're awake." Lizzy looks very much relieved. "Do you feel uncomfortable anywhere else?"
He began shaking his head.
"Where's Reese?"
"He informed the school of your absence. He'll be back in a while."
"I see," then he thought of Marc and the others. More specifically Marc. It's probably angry that he didn't get to go home last night.
"Where's my phone?"
"Reese came to get it at home. We were so worried last night that we didn't get to take it with us when we took you here."
Marc was probably calling him all night last night. Now he's really in big trouble.