Colorado Parks & Wildlife Research Library

The magic tree house takes Jack and Annie to a moon base in the future where they continue to search for the fourth thing they need to free their friend Morgan from the magician's spell.

The magic treehouse whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.

The magic treehouse takes Jack and Annie back two thousand years to ancient China where they must find the original copy of an old legend before the Imperial Library is burned down by the evil Dragon King.

Hailed by The New York Times as "a compelling dystopian look at paranoia from one of the most unique and perceptive writers of our time," this brief, captivating novel offers a cautionary tale. The story unfolds within a society in which all traces of individualism have been eliminated from every aspect of life — use of the word "I" is a capital offense. The hero, a rebel who discovers that man's greatest moral duty is the pursuit of his own happiness,...

The year is 1945. Claire Randall, a former combat nurse, is back from the war and reunited with her husband on a second honeymoon--when she innocently touches a boulder in one of the ancient stone circles that dot the British Isles. Suddenly she is a Sassenach--an "outlander"--in a Scotland torn by war and raiding border clans in the year of Our Lord... 1743. Hurled back in time by forces she cannot understand, Claire is catapulted into the intrigues...

The fifteen-year-old Murry twins, Sandy and Dennys, are accidentally sent back to a strange Biblical time period, in which mythical beasts roam the desert and a man named Noah is building a boat in preparation for a great flood.

On November 22, 1963, three shots rang out in Dallas, President Kennedy died, and the world changed. What if you could change it back? The author's new novel is about a man who travels back in time to prevent the JFK assassination. In this novel that is a tribute to a simpler era, he sweeps readers back in time to another moment, a real life moment, when everything went wrong: the JFK assassination. And he introduces readers to a character who has...

Two decades later, for a second time, Claire Randall travels back to eighteenth-century Scotland to be reunited with Jamie, the man she cannot forget.

"What if you could take a vacation to your past, without the filter of memory? What would you give to go back in time and relive your youth, in person, with the people who shared it? On the eve of her 40th birthday, Alice's life isn't terrible. She likes her job, even if it isn't exactly the one she expected. She's happy with her apartment, her romantic status, her independence, and she adores her lifelong best friend. But something is missing. Her...

"In one century she loved him madly, and in another she wants nothing to do with him. In 1844 Ireland, Liam O’Connor, a rogue and a thief, fell madly in love with a squire’s daughter and unwittingly altered the future. Shy and naive Cora McLeod thought Liam was the answer to her prayers. But the angels disagreed and they’ve been waiting for the right moment in time to step in. Now Liam finds himself reunited with his beloved Cora in Providence...