Last Exile: Death be thy nature

Claus raced towards his house as fast as he could (the guardians had made him human temporarily) "I can't let Lavie die, not when this is all my fault in the first place." Claus crashed through the door and ran through the halls, "Lavie, don't do it, don't kill yourself!" He made it to Lavie's room and thrust through that door. "Lavie!" "Claus?" "Lavie don't do it!" "Ok, ok, I know cake is fattening, but to come back from the dead so stop me from getting fat?" "Oh, I thought you were..." "Were what?" "Going to kill yourself..." Lavie looks surprised at the slowly fading away form of Claus, "you have to be kidding, killing yourself is no way of getting over someone, no matter how much they mean to you," "oh well, the whole death thing was an accident, it wasn't supposed to happen, not even the Gatekeepers were aware of it till it happened," "So you're back for good?" "I wish, I need you to come to the dead world and help me win a race to bring me back." "How do I get to the dead world?" "umm, I have no idea..."
The room suddenly darkened, and the same figure that appeared to Claus appeared to both of them, "CLAUS WHAT IS THAT?!" "that's the thing that killed me..." "HE'S GOING DOWN!" Lavie grabbed the figure by the collar of his coat, "YOU LITTLE PIECE OF..." "Lavie, don't he's the only way to the dead world, if you get rid of him now, there is truly no way for me to get back..." "But you said he was the one that killed you," "Yes, but he arrived to early, I think, I was supposed to be in my room when I saw him, not in the hallway," "So that's why..." The figure suddenly spoke, "Yes, for that I am sorry, but thanks to me you could get your life back, now if you would let me go please Lavie," "Oh, sorry," Lavie loosened her grip on his collar, "Now you two follow me,"
As they followed the figure through a darkened hallway, something happened, the two adults started changing back to they way they were when the War began and the same bodies that they were in when they won one of the greatest races ever, "Claus, did this happen to you?" "Not when I died, what's happening, you, umm, what do we call you?" "Call me the Ghost of the Past, nothing from some 'Scrooge' thing just that that's my job," "oh, ok, now WHAT THE HECK IS HAPPENING?!" "Lavie, calm down, we are going back through time, so that you can gain the youthful spirit that you used to have that drove you to win," "THAT'S THE STUPIDEST THING I'VE EVER HEARD!" "So we are going back in time?" "Claus how can you be so calm, this Ghost thing is taking us back, remember, we swore to never remember those days, with this, we'll have memories, of... of..." "Don't worry," The Ghost interrupted the two, "Even though you are going back to your youthful bodies, you will not remember anything except how to fly a plane, and what you know now, nothing like what you were saying, so it's your own minds, in younger bodies, well, we're here." As the Ghost opened a door, the boom and sound of planes flying full speed around filled the air, as the teenage Lavie and Claus looked with enthusiasm.