24 worlds. 6 planes. 2025 galactic years. One boy may decide the fate of everything. Shom Banerjee is just trying to survive eleventh grade in Kolkata-dodging bullies, caring for his twin sister, and staying clear of his unpredictable older brother, Shubhasish. But everything changes the night he meets Luta-a cryptic, otherworldly spider who whispers secrets of collapsing timelines and a war that spans realities. Soon, Shom's dreams begin to unravel. He wakes up with stardust under his nails. He sees fractured versions of himself. And the terrifying truth emerges: his brother isn't human. In fact, Shubhasish may be the last living vessel of Rhaak'tel, a cosmic destroyer once banished for trying to collapse the multiverse into a single stream. As Shom's world fractures, he and his friends-Chris, Subba, Rupjit, Akki, and Sipu-are thrust across six existential planes, each stranger and more dangerous than the last. Together, they must uncover the ancient code known as Protocol 2025-24-06, and face the unthinkable: To save 23 realities, one must be sacrificed.And Earth is not guaranteed to survive.Not even Shom is. In this high-stakes sci-fi thriller, Walter Wayne crafts a pulse-pounding, psychologically rich journey through identity, AI, consciousness, and sacrifice. Echoes of the Cosmos is the first entry in an explosive new trilogy that asks: What if our greatest potential is also our greatest threat?And what happens when the universe puts that choice in the hands of a seventeen-year-old boy?