Hekla's children (First edition)

A decade ago, teacher Nathan Brookes saw four of his students walk up a hill and vanish.

Only one returned - Olivia - starved, terrified, and with no memory of where she'd been.

After a body is found in the same woodland where they disappeared, it is first believed to be one of the missing children, but is soon identified as a Bronze Age warrior, nothing more than an archaeological curiosity.

Yet Nathan starts to have terrifying visions of the students.

Then Olivia reappears, half-mad and willing to go to any lengths to return the corpse to the earth.

For he is the only thing keeping a terrible evil at bay...