Ah, springtime. The time of romance, fairs, and the generational everlasting hope that school would soon be over. At this particular springtime annual fair, attendance was at an all time high. This was most likely due in part because the King and Queen were visiting, and had brought their children with them. The young heirs had begged their parents for money and tickets, and Celestia had convinced her little sister to try the climbing wall, despite that the little one did not like heights.
"Celly, Celly I can't do it!" Luna cried, holding onto the edge of the climbing wall for dear life. Despite being harnessed and buckled and strapped to all sorts of safety mechanisms, the young foal did not like this latest adventure. Not in the slightest. Celestia had taken her younger sibling out for a day at the park, and seeing a rock climbing opportunity, had elected to try and get Luna over her fear of heights.
"You're almost there, sweetheart," Celestia cooed. "Come on, one hoof over the other. Do it for Celly."
"For Celly..." Luna repeated, turning her attention back towards the wall. She was surrounded by weird little plastic rocks, and all she had to do was pull herself up.
"You're strapped in, I'm here, and the staff pony is here," Celestia said. "You're not going to fall, I promise. Keep going."
Luna scrunched up her nose, and reached above her for a rock. Her back hooves scrabbled for a hold, desperately clinging to the wall as if it were her last moments. She pulled herself up an inch or two, and a bright smile widened across her face.
"Celly, Celly, I's doin' it!" She exclaimed. "I's climbin'!" Enlightened now, she did the exact same maneuver a second time. Her hoof took a hold of the rock, and she pulled herself up.
"That's my sister!" Celestia exclaimed eagerly, getting the attention of several other ponies at the small fair. "That's my sister up there! You're doing it all by yourself, Luna!"
Luna was overjoyed, and reached up to grab the next one. It was just out of her reach. She looked down to try and see where her last hold was, and her eyes immediately widened. The ground was so far away! Almost immediately a piercing wail burst out of her mouth and tears erupted from her eyes, clinging ever harder to the side of the climbing wall.
"CEEEEEEEEELLLLLLLLYYYYYYYYYY!" Luna screamed. "Get me down! Please! Please! Get me down!"
The staff pony running the climbing wall looked kindly at Celestia. "I think she's reached her limit," he offered.
"Yeah, I'll get her," Celestia said, and walked over to wall, where Luna hung barely a foot off the ground. Her horn lit up the safety harnesses, and kicked the wall. Luna slipped off with a shriek and fell an inch onto her sisters back, where she clung for her life.
Celestia tossed him a bit, and the two left.
"Come on, Luna," Celestia said. "Let's go get ice cream."
"But... but... I don't... But I don't want.... kay."