"Across Time" by David Grinnell is a gripping voyage beyond the bounds of space—and deep into the fault lines of the human heart. Perched high in a mountain watchtower, Carl Halleck and his wife, Sylvia, are testing a cutting-edge radar system when they spot something impossible: blips on the screen—Unidentified Flying Objects—closing in fast. They send an urgent warning to Carl's brother, Captain Zachary Halleck, stationed below. The message is clear: Shut down all power—immediately! But Zack hesitates. Haunted by a past encounter with these same enigmatic objects—an encounter that nearly killed him—he freezes. In that fatal pause, the disaster unfolds. Now, Carl and Sylvia are gone. Vanished. Dead? Lost in the mountains? Or taken by forces unknown? Wracked with guilt and driven by a tangled mix of love, hate, and duty, Zack sets out to find the truth. When another shimmering craft appears in the sky, Zack doesn't run—he welcomes it. At last, the chance to face the mystery that has haunted him and, perhaps, to rescue those he failed. But what awaits him is not just a search through space—it's a journey across time itself, plunging him a million years into Earth's future. Here, humanity has evolved beyond recognition. There are no epic battles or flashy technology. Instead, this is a sweeping, visionary tale in the tradition of Jules Verne and Olaf Stapledon—a story of two brothers torn by guilt and rivalry, forced to confront their own immaturity against the backdrop of a universe where even Einstein would be a mere child. Across Time peels back the layers of human ambition and fear, revealing a far future where man's greatest conquest is not over the stars, but over himself.