Sam Ferguson has 8 audiobooks on Listento.it, narrated by 4 narrators. The most-rated is The Dragon's Test.

Jonathan is not the strongest young man in his home village. That would be his older brother Jason. He isn't the tallest, best looking, or funniest either. Again, that would be Jason. He is better than most in the village at archery, though. He is an excellent hunter, and can perform more trick shots than anyone else with amazing accuracy. Well, he is almost better than anyone else. Jason has him beat there too. Jonathan doesn't mind though, he and his older brother share a deep bond that connects them more fully than their differences could separate them. They work together in their family fields, go swimming at the fishing hole, and sometimes they play tricks on other farmers in the village. Whatever they do, for good or ill, they do together. On Jonathan's 16th birthday though, officers come to the village asking for volunteers. Trolls have invaded during the heaviest monsoon season ever known, and the wet conditions have given the trolls enhanced abilities. Jason is the first to step forward, and is eagerly accepted for his height and strength. Though he also volunteers, Jonathan is told he is too young, and not strong enough for the rigors of war with the trolls in the Murkle Quags. When letters stop arriving from Jason after two years of war, and Jonathan still finds himself denied acceptance to the army due to his small stature, he does what any good brother would do. Jonathan Haymaker takes his bow and leaves his home. They said it couldn't be done. The journey was too far, the dangers too great, and the war too fierce for a boy like him. Perhaps they were right, but he knew Jason was alive somewhere, and he was not about to let his brother be alone.
©2015 Sam Ferguson (P)2016 Dragon Scale Publishing

Tu'luh is dead. Erik must now hurry to find the Immortal Mystic so he can unlock the mysteries contained within the Infinium and destroy Nagar's magic. Meanwhile, the orcs are battering down the gates at Ten Forts. Will Lepkin and the others succeed in fending off the orcs long enough for Erik to reach the Immortal Mystic?
©2015 Sam Ferguson (P)2016 Sam Ferguson

Haunted by the ghosts of war, Erik Lokton has spent years traveling alone in the Southlands, hunting for answers to the nature of his identity as a Sahale, a dragon kin. Visited by visions of a fiery wrath that is one day to be brought upon the world, Erik also seeks to unravel the mystery of the Four Horsemen, enforcers of a mysterious Cosmic Counsel which is, by all accounts, unstoppable. When a series of murders in the Middle Kingdom call him home to help avert hostilities between dragon kind and the races of men, Erik is reunited with a beautiful woman from his past, the elven ranger Lady Arkyn. Together they must race to uncover the identity of the murderer. Erik will be faced with questions about his heritage and his past, and will find some unexpected answers.
©2017 Sam Ferguson (P)2017 Dragon Scale Publishing

In the exciting conclusion to the Sorceress of Aspenwood trilogy, Kyra will need each of her friends as she delves yet deeper into the underworld of dark magic that is growing around her. The threats to each of them, and to the Middle Kingdom itself, have reached the boiling point, and it is going to take every ounce of courage and wit Kyra has to survive the coming battle unscathed.
©2016 Sam Ferguson (P)2017 Dragon Scale Publishing

Tu'luh the Red has revealed himself and struck the first blow. Though Erik and his friends managed to drive him away, time is running short. The dragon now raises his army in its full strength and is preparing to march upon the Middle Kingdom. With Master Lepkin awakened from his coma, Erik must swiftly resume his training if he is to have any hope of facing the dragon down. All the while, the more Erik learns about the dangers he is facing, the better he understands that simply defeating Tu'luh is not enough. There is a much greater threat looming on the horizon that threatens to destroy not only the Middle Kingdom, but all of Terramyr. Worse still, Erik learns that joining forces with Tu'luh may be the only way to prevent the end of the world.
©2014 Sam Ferguson (P)2016 Sam Ferguson

Kyra Dimwater has made quite a name for herself in Kuldiga Academy. Under Cyrus' tutelage, she is mastering her magic and making great strides with her abilities. As they work to hone her skills, Kyra and Cyrus search for clues that might lead them to what they seek.
Kyra wants justice for her mother, and soon finds that she must push further into the world of dark magic if she is to find the puppet master that sent the assassin.
Unbeknownst to Kyra, Cyrus searches for a magic dagger imbued with a dark power that will advance his own schemes.
Caught in the middle is Leatherback, Kyra's fledgling dragon who himself must fight off the advancing tendrils of Nagar's Blight.
©2016 Sam Ferguson (P)2017 Dragon Scale Publishing

Still reeling from the intense attacks at Valtuu Temple and Lokton Manor, Erik's family and allies are caught up in the full swing of the plan started by the warlocks of the Order of the All Seeing Eye. The warlock Gondok'hr, masquerading as Senator Bracken, is on his way to arrest Erik's father and present him before a senate tribunal to stand trial for treason as part of the order's treacherous scheme for power in the kingdom. Thrust into unfamiliar situations without adequate preparation, Erik will have to rely on all of the lessons Master Lepkin has given him and hone his newfound power if he is to have any chance of stopping the warlock senator, but this time he won't have all of his friends nearby to help him, and Gondok'hr has powerful allies of his own that are preparing to strike.
©2014 Sam Ferguson (P)2016 Sam Ferguson

Bearing the scars of defeat, Erik must now race to protect his home from the powerful enemies that have declared war on his family. Outnumbered and outmatched, he must hold off the advancing horde until help arrives. To fail would bring the destruction of the Middle Kingdom, and all that he holds dear. Meanwhile, Al must finally deal with his brother Threnton, king of the dwarves of Roegudok Hall, if he is to have any chance to restore the Keeper of Secrets and help Erik survive the impending onslaught. Each night brings with it powerful new foes that flock to the warlocks' army as the tides of darkness sweep through the land, yet few allies stand with Erik and his friends. They will have to find a way to band together if they are to have any chance of keeping the enemy from regaining Nagar's Secret.
©2014 Sam Ferguson (P)2016 Sam Ferguson