|summary=An interesting and fast paced adventure story about twins trying to discover a family secret, but then wondering whether they really wanted to know the truth when it emerges.
|date=October 2008
|isbn=978-1405098991
|amazonuk=<amazonuk>1405098996</amazonuk>
|amazonus=<amazonus>1405098996</amazonus>
|sort=Chalice Project (Island Fiction)
|cover=1405098996
|aznuk=1405098996
|aznus=1405098996
}}
Thanks go to the publishers for sending The Bookbag this title.
[[The Time Traveler's Wife by Audrey Niffenegger|The Time Traveler's Wife]] is a good choice for older readers interested in this topic, while if you prefer the genetic engineering side, consider [[Blood Ties by Sophie McKenzie|Blood Ties]] or [[This Mortal Coil by Emily Suvada]].