The chains are breaking.The titan is waking.And Atlantis is running out of time.In Tides of Atlantis - Kalen and the Sleeping Leviathan, the Deep Five face a danger far greater than any prophecy they've known.Deep beneath the Obsidian Ridges, Kalen hears a sound no one was meant to hear-a massive, ancient heartbeat echoing through stone and pressure. As tremors spread across Atlantis, it becomes clear that the Leviathan, a legendary titan bound beneath the ocean for centuries, is beginning to stir.While Abysswalkers race to use the Leviathan as a weapon, Kalen discovers a terrifying truth: the ancient chains respond to him. Drawn toward the prison at the heart of the deep, he must confront powers older than Atlantis itself-powers that threaten to crush him under their weight.As the Deep Five descend into forbidden trenches, uncover lost runes, and face betrayals hidden within the shadows, the Leviathan's awakening sends shockwaves through the city. Towers fall. Shields shatter. And when the titan finally rises, Atlantis trembles beneath a shadow too vast to fight.Bound by friendship, tested by fear, and hunted by forces that want to reshape the ocean, Naida and her friends must decide what they are willing to sacrifice to save their world.Because when a sleeping king awakens...the tide will never be the same.