Shawn Vestal’s darkly provocative story collection rivets a reader’s attention early on. And like the Mormon faith, which visits itself mightily upon many of these stories, it never really lets you go. In “The First Several Hundred Years Following My Death,” eternity plays out in an endless reel of memories from one’s life. Everyone remains the age they were at death, and the pain, loneliness and heartbreak they lived dogs them throughout the afterlife. “Nobody tells you anything,” reports the hapless narrator from the year 2613, “No instruction sheet, no welcome wagon.”