Arty Tekken has a problem.

Of all the presents in all the world, Tobias' first anniversary gift should be special. Which is why Arty is going to get him something wonderful, fabulous, even...otherworldly.

Luckily, Arty can open a wormhole and hitchhike to the ends of time and space, but what should he get?

A bumbling attempt to find the perfect present lands Arty on Atashaal, a strange planet where the Living Crystals can be found. Unfortunately, he also finds himself smack bang in the middle of a civil war.

Desperate for the secret to Arty's abilities, aliens capture him, seeking the answers.

But Arty can no more explain this than he can the garbled voices he alone is hearing. When they start to make sense, Arty's past begins to trickle in, blurring the lines between reality and fantasy. All he wants to do now is get off Atashaal no matter what. But with his failing legs, his escape from capture is also hindered by the fact he's swamped in the voices and the burning desire to get back to Tobias.

As Arty grows weaker, he doesn't know if he will ever see his beloved Tobias again or whether he'll remain stuck on Atashaal, a prisoner forever in every sense of the word...