Hellgates

Some secrets are worth killing for. Hellgates.
Interdimensional portals that lead to a parallel world some call The Pit.
Others call it Hell, a place of brutality, torture and unbelievable suffering.
There is only one force that can protect the Earth from the vile creatures that crawl out of these Hellgates. The Hidden Hand.
It is a ruthless and secret organisation that guards the world of humanity.
For centuries, its agents have hunted down the invaders from that other world.
Be you human or monster, the Hidden Hand will show you no mercy. A second chance?
Special Forces officer, Craig Armstrong, made a mistake and innocent people died.
With his career in ruins, he faces disgrace and ten brutal years in military prison.
Instead, he is offered a chance at redemption, and joins the elite ranks of the Hidden Hand. There's just one problem.
His first month on the job and the Hidden Hand is faced with its greatest threat yet.
Worldwide, the Hellgates are waking up, threatening to unleash the apocalypse upon the Earth. Craig is about to discover that keeping secrets comes with a terrible price. Hellgates is book 1 in the Hidden Hand Case Files, a pre-apocalyptic horror series.