The Mysterious Package

Two sisters, strangers on a train, and a mystery to solve ...Hannah and
Tamar are looking forward to spending Thanksgiving break with their
grandparents. On the long ride to Vermont, the sisters are quick to
offer assistance when a fellow passenger - a girl in her late teens - is
hassled by a rough-looking young man. Grateful as she may be for their
help, Gwen is in no hurry to make friends, not even as she thrusts a
mysterious package into Tamar's hand and disappears in the Rutland train
station. Puzzled by her behavior, Hannah and Tamar set out to locate
Gwen and unravel the secret of the mysterious package.