Seventeen-year-old Dan and his partner Sam know that their only chance to stop Victor Stahl’s quest for global domination is another jump into the past. This time, they find themselves in ancient Greece on the eve of one of history’s most famous conflicts: the Battle of Thermopylae. Heavily outnumbered by the massive Persian army, the Spartan warriors and their allies are girding themselves for war when a horrible accident threatens the fabric of history itself. In a race against time, Dan and Sam must battle to prevent a catastrophe far worse than Victor’s sinister plans. Exciting, action-packed, and full of historical intrigue, The Spartan Sacrifice is perfect for teen and young adult readers who love time travel, epic battles, and fast-paced adventures. "Varga’s lively, accessible writing and quick historical backgrounding pull everything together in this highly recommended adventure" —Beth Kanell, Historical Novels Review "A captivating tale of time-traveling teenagers who endure the brutal reality of ancient Greek infantry battle to save the modern world" —Thomas R. Martin, Author of Ancient Greece and Jeremiah O’Connor Professor in Classics, Holy Cross University “A thrilling mixture of history and high-stakes adventure” —Allison McGeorge, Teacher-Librarian, York Region District School Board, Ontario, Canada “An immersive historical experience fused with world domination and teenage angst” —Dr. Christine Crawley, Emerson Park Academy, UK “Rich settings and dynamic adventure that unravels as Dan races to set history right” —Skylar Hamilton Burris, Editor, Ancient Paths Literary Magazine “Andrew Varga masterfully weaves time travel, high stakes, and gripping action into a story that kept me turning pages late into the night.” —Oksana Marafioti, Author of American Gypsy “A tapestry that is both vivid and captivating, making time travel seem almost plausible.” —Ruth Mormon, Librarian "Varga pays careful attention to historical details to bring the past to life while also creating an action-packed tale of adventure" —Beth Castrodale, award-winning novelist and editor of Small Press Picks Praise for the Jump in Time Series of Books: “Fun adventure and interesting historical background” —Kirkus Reviews “Unreservedly recommended” —Thomas J. Howley, Historical Novel Society “Edge-of-the-seat time traveling historical fiction” —Sharon Bennett, Fellow of the Royal Historical Society “Action, adventure, and romance” —Booklist Magazine "Moral, ethical, and historical dilemmas that challenge characters and readers to understand the nature of paradoxes, conflicts of interest, and personal impact on outcomes” —Midwest Book Review Ever since his mother revealed that he’s descended from Vikings, ANDREW VARGA has been captivated by history. He has studied extensively, read hundreds of history books, watched numerous historical films, and earned a BA from the University of Toronto with a specialist in history and a major in English. Andrew has traveled across Europe, explored famous castles, museums, and historical sites, and over time, has built a collection of swords, shields, and other medieval weapons. He currently resides in the greater Toronto area with his wife Pam, their three children, and their lively mix of two dogs, two cats, a turtle, and some fish. It was his children’s passion for reading—especially historical and fantasy stories—that inspired Andrew to begin writing this series. Outside of his writing and editing work, Andrew enjoys reading more history, playing guitar, and playing beach volleyball.