David Wolstencroft Books in Order

True stories from the television series explore animal rescuers, dramatic pet rescues, working animals, and pets with unusual talents. Alongside accounts of remarkable companions, the book offers a look behind the scenes at how the program was filmed.

Two intelligence operatives and longtime friends receive their final assignments before retirement, only to discover each has been ordered to kill the other. Their resulting international pursuit becomes a search for the reason their own employers want them eliminated.

Newly trained spy Ben Locke is framed during his first assignment and discovers that former classmates are being murdered. Cut off from official protection, he seeks Contact Zero, a possibly mythical source of help for discarded agents, before he becomes another victim.

Eleven-year-old Ailsa discovers an extra hour hidden within a parallel Edinburgh and initially uses it to improve her life. Learning that the borrowed time has a terrible price sends her into a struggle against sinister forces threatening her family and the wider world.

As Ailsa approaches thirteen, a monster loose in Edinburgh disrupts time and traps her in repeating days. Entering the hidden world of Middlemarket, she must find a way to return the creature and break a worsening loop before time itself comes to a halt.