The Mystery at Hollowhearth House — Marilyn Ezzell

SUSAN SAND AWARD-WINNING MYSTERY WRITER
is enlisted by her best friend, Marge Halloran, to recover the rightful inheritance to Hollowhearth House, swindled from Marge's grandfather years ago. Entanglements, danger, and startling discoveries greet our young sleuths at every turn.

In chilling adventure that takes us from Hollowhearth House to New York City to Thornewood's Irongate University, Susan Sand employs her courage, sleuthing abilities, and clever deduction to outwit her cunning enemies and unravel this suspenseful and puzzling mystery.