Nancy Drew: 3 Clue in the Jewel Box

Nancy helps an elderly lady back to Lilac Inn where she & her maid are staying for a few weeks. She asks Nancy to come see her again as she wants to hire to her to find someone. Meanwhile, Helen's pen pal Katherine Kovna & her family arrives & are also staying at Lilac Inn. But a strange figure starts showing up around Lilac Inn, and Nancy must find out what's going on.