Calming A Racing Heart

Joshua was born with an emptiness inside him. A physical hollow that occupied half of his existence. No one else could see it, but he was constantly aware of its presence . Every day his life was plagued by the hollowness, never feeling whole.

When he turned sixteen it got worse. An extreme longing took up residence in the center of that emptiness. A longing so intense it caused his heart to physically speed up uncontrollably.
Following his businessman father from planet to planet, he spent ten long years searching for something, anything that would fill the void in his life. Nothing he found appeased the longing or filled the emptiness.

Nothing, that is, until on the planet Casentell, far from his home world of Earth, Joshua met Larcin.

Larcin was an alien from the planet Joong, a planet totally shrouded in mystery. Other than their physical appearance, which was the same as every other bipedal humanoid race in the universe, virtually nothing was known about them or the planet they came from.

One crucial factor set them apart from every other race. They were the only race of people with the ability to navigate the starships that made interstellar travel possible. Without a Joong navigator at the helm, even the mightiest starship was stuck within the confines of its home solar systems.
Larcin was one of these navigators.

What could possibly draw these two men together?
And what would be the consequences of this fateful meeting?