In the Blood — Fay Sampson

The first in a fascinating new series combining mystery and genealogy - Keen family history researcher Suzie Fewings is delighted when she discovers an ancestor with the same name as her teenage son. But what she finds out about the seventeenth-century Thomas casts a darker shadow than she expected. Then her own Tom's girlfriend is found dead in mysterious circumstances, and Suzie finds it hard to suppress her growing fears that Tom has inherited more than a name from his predecessor . . .