Blood Brother (Traces)

Teenage forensic investigator Luke Harding is back with a brand-new
case. In Blood Brother, Luke and his robotic sidekick, Malc, are assigned to
a hospital with a mysteriously high rate of fatalities. As Luke investigates a
number of suspicious patient deaths, he meets his long-lost father, a doctor
who practices alternative medicine at the hospital. But this is no happy
family reunion, as Luke's father's DNA is connected to several of the crime
scenes, making him Luke's prime suspect! Full of action and suspense,
Malcolm Rose's thriller builds to an explosive ending as Luke narrows in
on the murderer.