Susan Philpott's pulse-pounding debut is "a pacy action-packed thriller that will leave you gasping" (Peggy Blair, author of The Beggar's Opera).
Like a runaway train, Signy Shepherd has been blowing through danger signals all her life.

Recruited to the Line, a shadowy underground railroad dedicated to helping women in peril, Signy has no idea that her first solo case will set her on a collision course with a renowned photographer concealing a murderous past; a relentless tracker with an explosive secret; and her own violent demons.

Set during the height of a brutal heat wave, the pressure mounts as Signy and her young passenger race across the country toward a sanctuary that proves to be a deadly illusion.