Michael Grant said this quote

And he thought of the two people who had held his job before him: Sam and Astrid. Both beaten into despair by trying to hold this group of kids together in the face of one disaster after another. Both of them now happy to let Edilio handle it.“No wonder,” Edilio muttered.“Stay inside unless absolutely necessary,” Edilio shouted, and not for the first or last time wished he was still just Sam’s faithful sidekick.