Catalyst
In 1984 a doomsday vault was constructed on a remote island in the Arctic Ocean.
Its purpose was to preserve Earth’s genetic history in the event of a global catastrophe.
Now, decades later, a second vault has been uncovered.
This one resting where no one ever expected.
And the problem is…it’s not ours.
Yet even more curious than the vault itself, is what lies inside.
Seeds. Millions of seeds. Each with a genetic embryo untouched and perfectly preserved.
Waiting.
No one knows who built it. Or when.
What we have managed to figure out is that whoever it was traveled an immense distance. For the sole purpose of hiding their genetic blueprints on Earth.
But why?
Now a small group of marine biologists and navy investigators have been assigned to find out. Before anyone else does.
But Alison Shaw and John Clay are not prepared for what they are about to uncover.
Beginning with the truth behind our own evolution.
Michael C. Grumley
For years, Michael Grumley dreamed of writing thrillers the way he thought they should be written; complex, multi-genre stories with unique plots that 'move'. Enter BREAKTHROUGH, AMID THE SHADOWS, and THROUGH THE FOG: all deeply human stories with endings you will never see coming.
Michael C. Grumley lives in Northern California with his two young daughters. He’s an avid reader, runner and most of all father, and dotes on his girls every chance he gets.
He is currently working on the next Breakthrough installment.
Breakthrough
Breakthrough consists of six primary books, and includes one additional book that complement the series but is not considered mandatory reads. The current recommended reading order for the series is provided below.

