The celebration will take place at the Gentle Mermaid in the Nobles Quarter, the fanciest Festhall in Waterdeep as well as one of the largest. The room is decorated with fine silks and exotic place-settings, and Aleena and all of you are seated at the head table. Over a two hundred guests, generally powerful merchants, wizards, temple heads, government officials, diplomats, military officers (as well as significant others and courtesans, some of whom are probably spies of some sort).
Security is being coordinated by lower-ranking operatives of The Hidden Shield, led by Dalin, Durodan, and the rest of their crew, including the now-resurrected Vara. Their group commands a group of city guard and watch, nobles' personal guards, and diplomatic security officers. Some nobles and diplomats have opted to bring one or two discreetly-armed attendants individually into the party. Dalin stands watch from the roof and coordinates using his helm of telepathy.
Most arrive by carriage, and the numerous carriages are stored in a covered area next to the festhall. Others walk, and a few teleport to the front entrance.
Maggie and Aleena choose to teleport in together just as the rest of you arrive. Aleena wears a white evening gown and gold jewelry. She wears a pin showing the holy symbol of Tyr, which belonged to her father, no doubt an intentional reminder of her heritage. She wears earings with small symbols of the City of Waterdeep. Her hair is braided to look much like a crown, no doubt a not-so-subtle sign of leadership.
Her blue crystal necklace shows her own personal heraldry, which is also her personal wizard's sigil. Every wizard has a personal sigil, and falsifying another wizard's symbol or intentionally misusing restricted heraldry in ones sigil brings dow the greatest curse that can ever be placed upon a wizard, entirely negating their spellcasting ability until they right the wrong and make atonement for their crime. Her necklace is an eight-pointed star, inlaid with gems, forming blue stars at each tip except the bottom one, where instead the gems form a blue eye. In the center is a blade, facing down, with blonde hair flowing from the crossbar and a halo above the handle. The sword and halo are borrowed from her father's heraldry, while the symbols around the end are devices restricted to the Chosen of Mystra and their direct disciples. Mystra's symbol is usually an eye with seven white diamond-inset stars around it, so this device encircles other heraldry, with the position of the eye and sometimes the color of the stars varying based on which Chosen it indicates. Timrin (Knowledge: Nobility) notes that since the eye is in he bottom position, Aleena must have been a student of Laeral, which certainly explains her use of rare and complicated spells like that aura resonance attack.
Maggie arrives wearing a low-cut sequined blue dress. Her ring gauntlet has been transformed into a thinner and more-color-appropriate version of itself, being just a gold bracelet that wraps around her right forearm and wrist that crosses over between her thumb and pointer finger, leading to the ivory disk on her palm. The rings and chains are no longer part of the device. Her hair is made long and curly, and she wears a pink flower tucked by her right ear, probably a transformed version of the discrete headband of intelligence that she always wears in some form or another. The back of her dress has a series of gem-outlined stars, meandering down the dress until is reaches a heraldric symbol on her lower back. Her symbol also bears the star-eye pattern indicating her to have been a student of Laeral, which explains HER access to unusual magicks as well as her close relationship with Aleena. She wears gold and silver bracelets on her left wrist, and a pin depicting the city symbol like Aleena's earings. She also has rows of small symbols at the top/side of her sleeves, symbols of military rank and other distinctions, used in dress uniforms but also allowed to be incorporated into things such as this.