No Time for Goodbye — Linwood Barclay

Fourteen-year-old Cynthia Bigge woke one morning to discover that her entire family -- mother, father, older brother -- had vanished. No note, no trace, no return. Ever. Now, twenty-five years later, she'll learn the devastating truth.

Sometimes it's better not to know.

NO TIME FOR GOODBYE
Cynthia is happily married with a young daughter, a new family. But the story of her old family isn't over. A strange car in the neighborhood, untraceable phone calls, ominous "gifts" -- someone has returned to her hometown to finish what was started twenty-five years ago. And no one's innocence is guaranteed, not even her own. By the time Cynthia discovers the killer's shocking identity, it will again be too late...even for goodbye.