Contains Lodestar spoilers.

In the first book Sophie mentions she's having nightmares.

"Have you been having nightmares?"

"Sometimes." Since school started she'd stopped having them every night, but at least once a week she still woke up in a cold sweat. "Sometimes I dream that my family is trapped in a burning house, trying to get out." She shivered as the terrifying images flashed through her mind.

Is it foreshadowing?