A/N 12-6-10: Well, we're skirting ahead through the years now. This is the last chapter Jinx will be 12. She will have many birthdays over the next three chapters, and we're building up toward the Jump City story arc and chapter 26 aka the appearance for the fl in flinx. And way ahead in ch 40 KF is running for his freedom in Central City. Until then Jinx grows up.
Chapter 21: Growth
The rest of Jinx's twelfth year passed in an endless routine with only subtle variations and unexpected events to spice up the monotony. Zatanna, after thoroughly dressing Jinx down for her reckless behavior, taught Jinx how to correctly utilize her magic to travel through the Looking Glass without any misadventures or side-trips to far away cities, but six months passed before Jinx finally managed to enchant a mirror with her own magic to enter the Mirror dimension without her magic cracking the mirror and thus destroying the spell; but the day Jinx perfected the spell was the day a reign of terror descended upon Wayne Manor.
("Hey, Shortpants! Did you miss me?")
Of course, maybe only Robin viewed Jinx's endless popping up as annoying. Batman viewed her presence as an irritating but tolerated entity to be carefully monitored, and Alfred welcomed her with the same open arms and warmth that he showed Bruce and Dick.
Magic lessons proceeded at Shadowcrest, and somehow Jinx's and Robin's smackdowns (that always occurred whenever she appeared) gradually evolved into sparring sessions and then training sessions when Robin eventually decided to teach his not-quite-really friend how to properly defend herself instead of the motley gymnastic style she utilized.
But, oh, how the stars did fly and the silly grins of glee abound when Zatanna finally deemed Jinx in enough control of her powers to use them in front of others, and when Batman deemed it appropriate Robin should know how to fight a magic user and roped off an area of the Batcave for Jinx to utilize.
"Hey, Shortpants, ready for some bad luck?"
Eyes—that she'd discovered were blue—hidden by the mask narrowed as Robin's face morphed into an anticipatory grin.
Prompt: Silly