When university professor Peter de Haan attends a library event, he has no idea of the dangers that await him. As an area outside the library collapses, a hidden tunnel is revealed. Inside cowers a naked man, covered in blood. Then Peter receives a mysterious text message – the hour has come…

When Peter’s colleague Judith disappears, he realises he has been drawn into a plot with consequences deadlier than he could ever have imagined. He has twenty-four hours to find her, otherwise she will be killed.

As Peter investigates, he uncovers mysteries that have been hidden for years. But following his every footstep is an underground society who will stop at nothing to keep their secrets hidden. Will Peter save Judith in time, or will his quest end in disaster?