Mitch Reinhardt has 2 audiobooks on Listento.it, narrated by 2 narrators. The most-rated is Wizard's Key.

War has broken out in Alluria...and we are losing. Geoff, Jane, and Sawyer are faced with a choice: They can either stay home, trying to live their old lives, or travel back to Alluria and help their friend Ariel fight the armies of the dreaded Shadowlord. But what can three teenagers do? If they are to save the kingdom of Chalon, they must discover the identity of a deadly assassin before it’s too late, battling barbarian hordes, ogres, and even a dragon along the way. They discover an ancient prophecy that foretells the coming of three outlanders who are destined to battle the forces of evil for the fate of Alluria. Can the trio rise to the occasion? Are they truly the heroes of prophecy? It’s a race against time to save a world from falling into darkness.
©2018 Mitch Reinhardt (P)2020 Mitch Reinhardt

Finding a magical key was easy. Staying alive, however.... The dirt-encrusted key didn’t look like much, but when bullied teen Geoff inadvertently activates it, he is suddenly thrust into a strange and beautiful world. It doesn’t help that he’s accompanied by Sawyer, his chief tormentor at school, but there is a silver lining in that intelligent, compassionate Jane is also with them. Soon, the three teenagers encounter evil orcs, majestic unicorns, dangerous trolls, and a mysterious elven druid who doesn’t care for humans. Together, they must make their way back home before the new world they find themselves in erupts in war. Along the way, they’ll be tested to the limits of their endurance - and discover hidden powers deep within. But will those powers be enough to stop the ravenous werewolf that is stalking them?
©2016 Mitchell Alan Reinhardt (P)2018 Mitchell Alan Reinhardt