When history teacher Fritz Russell walks through his classroom door, he finds himself in the company of General Robert E. Lee - over 150 years in the past. Fritz finds his sudden time trip to the past both a gift and a chance for great adventure. But when a portal opens to the Oval Office, he realizes that the mysterious gate could also be put to a more serious purpose. When the president hires him to help with national security, Fritz doesn't believe there is any danger in traveling across time and space. But will his own government consider him expendable if he cannot solve the mystery of the portal? ★★★★★ - "Michael R. Stern brings a new twist to the concept of time travel in this fun, fast-paced and inventive read." ★★★★★ - "An exceptionally fine science fiction novel."

The world is on the brink of nuclear war. After Fritz Russell discovered a portal through space and time, he helped the United States resolve a foreign crisis. Now, the president wants him to use the portal to avert a nuclear threat in the Middle East. For a history teacher, traveling to the past is entertaining and enlightening. But Fritz hasn’t learned all the portal’s secrets, and he can't be sure if using the portal has other, long-reaching consequences. If he uses it to help the president, there might be a war. If he says no, the world will be in great danger. No matter his choice, one question remains: does he have enough time to learn the mysteries of the portal? Praise from readers: ★★★★★ - "The writing is crisp and the plot line compelling... a hidden gem." ★★★★★ - "The Quantum Touch series could make a great movie or TV series. An excellent story." ★★★★★ - "An entertaining time travel adventure... recommended."

When he opened a portal into the Oval Office, Fritz Russell agreed to help make the world a safer place. He saved hostages, prevented a nuclear war, and began a life of excitement and danger he never saw coming. Now, a terrorist group has captured the President, and Fritz must turn to the portal as a weapon to save him. Soon, unrest escalates and Fritz becomes a target himself. The portal may be the only way he can save the president and end the growing danger. But against a power that will stop at nothing to bring chaos to the world, can Fritz prevail? ★★★★★ - "This series just keeps getting better." ★★★★★ - "A thought-provoking, fun read."

As the president negotiates to end war in the Middle East, another plot to destroy peace moves into high gear. Meanwhile, Fritz returns from a trip through the portal, and realizes that the world around him has changed. After the White House comes under attack, Fritz is once again called to action. The portal is a powerful tool, but entering it risks undeniable danger. It's their only way to stop the enemy. But at what cost? ★★★★★ - "Expert pacing, rich characters, and pitch perfect dialogue." ★★★★★ - "The characters are believable, and evolve with the story in a way that is true to their nature, and the circumstances they are faced with. Five stars."

As Fritz Russell’s summer of exploring the past with the portal comes to a close, the president recruits him for a crucial mission – stop a coup that threatens the outcome of a vital election. With moles inside the government passing crucial information about the portal, Fritz must be cautious about how it’s used, and who he can trust. With surprise visits from Ben Franklin, Winston Churchill, and Albert Einstein, Fritz attempts to prevent himself from becoming a pawn in a complex game of chess. But can Fritz put an end to the conspiracy and prevent checkmate? ★★★★★ - "Feasible storyline with a great depth of character description. I can't wait for the final book." ★★★★★ - "This series just keeps getting better."

Fritz Russell has disappeared into the portal, leaving a trail impossible to follow. This has caused a chain reaction that ripples across the time-space continuum. Undaunted, his friend Ashley searches for Fritz, determined to find him and reverse the disruption of time. Attempting to undo the changes Fritz has done, Ashley discovers a shocking connection between parallel universes and the portal. Disturbing the flow of time comes with a heavy price. But will it prevent him from bringing Fritz home? ★★★★★ - "Mr. Stern has compiled history into an exciting adventure. Loved this series." ★★★★★ - "A time-travel adventure that involves politics, military action, conspiracy and relationships. Outstanding work."