The force field around Gramps and Katy no longer worked.
Katy stammered, "What...What do we..."
"We don't move," Gramps said. "We stay right where we're at. Just remember what I told you about that X."
"Is it still on?"
"It's still lit, yes. Even without the force field, this is still the safest place for you to be."
"You look worried, Gramps."
"It's all up to Adam, now," Gramps said.