Books in Missing Link series

Jessica Mastriani knew she wasn't going to be able to hide her psychic powers from the US government forever - but she never thought that she'd actually have something in common with one of their agents! Especially as that agent is Dr Cyrus Krantz , who had previously been brought in to 'convince' Jess to join his elite team of 'specially gifted' crime-solvers, when all they were after was using her special skills for their own ends. But when a local boy's disappearance and untimely death is attributed to a backwoods militia group, Jess' goal - to find another missing local child - and Dr Krantz's - to stop a group of madmen before they kill again - turn out to be one and the same...

The first book in a trilogy about terrifying genetic experiments. Danny is different. He's slower than other kids his age, and prone to violent outbursts. But when Danny runs off to find his biological mother, his older stepbrother Christie impulsively follows him. Along the way the two boys are joined by a runaway girl, a bird, and a dog that can speak to humans. However, nothing can prepare them for what they learn when they finally locate Danny's mother at her laboratory, Fourth World. It seems Danny's mother has been performing experiments-secret experiments-with terrifying genetic significance...