Elizabeth's work on blood types for her science fair project proves valuable when she becomes suspicious of the young woman who has appeared claiming to be Aunt Nan's niece.
- ISBN10 0570048362
- ISBN13 9780570048367
- Publish Date 23 January 2008 (first published 1 July 1996)
- Publish Status Out of Print
- Out of Print 6 December 2011
- Publish Country US
- Imprint Concordia Publishing House
- Format Paperback
- Pages 111
- Language English