For the sake of getting things moving in the arc I will post brief descriptions and information regarding the NPCs that will appear. There are plenty of them and several will most likely be one shot for the adventure. I will update this when appropriate.

Mana Burn: Male, purple eyed, blue coated unicorn sporting a purple mohawk. Employed as one of Canterlot's Royal Guardsmen often working alongside Thunder with a strong interest in gems and enchantments. Armor, when worn, is silver and sports a large purple gem on the helmet intended to help focus his spells. Magic practiced focuses strongly on defensive barriers and protecting others. Sent to Weaver on Gleam's request.

Thunder: Male pegasus, gray coat, turquoise eyes, yellow mane he doesn't bother to style. Armor when worn is standard issue though appears a bit beat up. Employed as one of Canterlot's Royal Guardsmen often working alongside Mana Burn. Ex-weather factory worker who often tries to keep things light. Sent to Weaver on Gleam's request.

Spirit and Alacrity: The two Earth pony mares currently running The Green Lion's alchemy shop and inn. Spirit lives up to her name and is eager to please with bright blue eyes and a wispy blue mane over her peach coat. Spirit is friendly and easy to talk to with her working well as the first face customers see when entering the building. Alacrity is less bubbly. She's just as helpful, but what she says often carries a dry but mild sarcasm that can rub some the wrong way should they not expect it. Alacrity's coat is a lavender shade of purple with a deeper tone coloring her straight mane. Her eyes are dark teal and often half lidded as she appreciates her own observations.

Aether Alkahest: Owner of The Green Lion and noteworthy alchemist. Currently off in Canterlot doing something or other according to his two cousins left running things during the Festival in Weaver.

Diligence: One of the five mayors affected by the occurrences. Orange Pegasus with a reputation for using other's dirty secrets to her advantage and taking great enjoyment in the mistakes and embarrassment of her rivals. Acting mayor for the city of Perticity who dealt with the third occurrence. Timber wolves appeared closer to Perticity's castle than in Greenswill and Noble with several instances of ponies being mauled before the situation was brought under control.

Merger: One of the five mayors affected by the occurrences. Light blue Earth pony with shaved sections of his mane who is considered an idiot by most. He is the mayor of Greenswill and has the earliest account of the occurrences where bunny rabbits suddenly appeared in Greenswill's market. Local investigation only picked up small traces of magic with the event being dismissed as a prank.

Matrix: One of the five mayors affected by the occurrences. Dark green, snooty and dismissive unicorn who serves as mayor for the city of Berylsburg. Has not yet been hit by the events plaguing the rest of the mayors but is thought to be the most likely next target due to his city's Gem Exchange coming up.

Visionary: One of the five mayors affected by the occurrences. Mild yellow Pegasus in both color and personality acting as mayor for the city of Noble. Dealt with the second occurrence where dogs appeared in Noble's market with a few reports of bites being the only harm done. Investigation turned up examples of a few of the dogs being melded into the walls of some of the market's buildings.

Lion Heart: One of the five mayors affected by the occurrences. Sizable and stern dark red Unicorn. Mayor of Corona and pony responsible for the revival of the Cortoza in his city. Dealt with the most recent occurrence of manticores invading his castle courtyard out of thin air and causing quite a bit of damage before being put down. Responsible for gathering the other mayors together and contacting Gleam. Currently heading up the investigation regarding the events.

Charybdis – Female Griffin with dark brown fur, black feathers and chestnut eyes. Carries a short sword and wears a vest of cloth and leather for light protection. The left side of her beak is rougher than the right hinting towards a scar currently healing. Claims association to an organization called the Hyacintho Militum and commanded the small team that attacked the group in the barn at Weaver.

Arum – Light Green Pegasus mare wearing lightweight strapped clothing that keeps clear of her wings. Encountered in the barn in Weaver, she is associated with Charybdis and takes orders from her. Displays a talent for archery.

Armored Stallion – The third member of the team that attacked the group in the barn. Cyan stallion that wore a suit of etched armor that glowed and absorbed certain kinds of damage. Name unknown. Last seen seriously injured.