The Second Seam

The dark is not empty. Beneath the Empty Quarter - the largest sand desert on earth - a letter has waited two thousand years to be read. Michael Dale has spent a year trying to dig his wife back out of the ground. Now he is chasing a different grave: a temple buried in the Rub' al Khali, where a fragment of a forbidden Name lies sealed in wax and lead. His blind brother Brandon can hear it singing through the rock - and every time he listens, it kills him a little more.
They are not the only ones hunting it. For twenty centuries the Covenant of Ash has kept the Name buried, and their Custodian offers Michael's fracturing team the one thing the desert cannot: certainty. Safety. A managed, comfortable silence. All they have to do is surrender the coordinates of the second seam. But the closer they come, the clearer the truth becomes. You cannot hold the Name in a clenched fist.
You cannot verify it, cage it, or carry it out of the dark by force. You can only open your hands - and find out whether the dark was ever empty at all. The Second Seam is the twentieth novel in the Unseen Truth series - supernatural suspense in the tradition of Frank Peretti and Ted Dekker, a story that confronts you with eternity and never once preaches. Every book stands completely on its own. The seam is waiting.