Voices of the Void - David V Stewart - Bog

Is Andrew Dalatent Insane? If he is, that madness has saved him and turned him into something powerful - a being that can see both past and future, but only if any of the minds that occupy his head can be believed. The distant Mining colony of New Gibraltar has gone quiet. Andrew, a mercenary known for his unique ability to survive one deadly encounter after another, is sent to investigate. The colony is empty but nothing remains of the people that once lived there. Whispers, though, are coming from the darkness below. The horror that waits for him at the bottom of the mine, and the end of his mission, is what every mind within his head fears, save for one. It is a thing unspeakable, indescribable, unknowable, and it has changed the colonists in a way no man can witness and retain his sanity... But is Andrew Dalatent sane to begin with?