Book of the dead / Greig Beck.

Massive sinkholes are opening across the country - each larger and deeper than the previous one. First the family pets go missing, and anyone living near one of the pits, is reporting strange phenomena - the vibrations, sulphurous odours and strange sounds rising up from the stygian depths. Then come the reports of horrifying 'things' rising from the darkness. When the people start disappearing the government is forced to act. A team is sent in to explore one of the holes - and all hell breaks loose - the Old Ones are rising up again. From the war zones of the Syrian Desert, to the fabled Library of Alexandria, and then to Hades itself, join Professor Matt Kearns, as he searches for the fabled Al Azif, known as the Book of the Dead. He must unravel an age-old prophecy, and stop Beings from a time even before the primordial ooze, which seek once again to claim the planet as their own. Time is running out, for Matt, and all life on Earth.