The Magic Realm

The Magic Realm is a hidden neighborhood featured in The Sims 4: Realm of Magic. It is accessed by travelling through a portal in Glimmerbrook or by using a Glimmerstone, which can only be used by spellcasters. The neighborhood consists of a small, partially-destroyed town built atop floating rocks in a dark void, with a unique day and night cycle. If Seasons is installed, the weather is always partly cloudy, referred to as "Mystical Clouds".

The Magic Realm
When visiting the neighborhood, Sims are taken to the "Magic HQ", where the three spellcaster sages reside. Other spellcasters will visit this building as well.

Each NPC sage represents one of the schools of magic. They can tutor spellcasters in their respective school, and they all have the highest spellcaster rank, Virtuoso. They can also turn normal Sims into spellcasters through providing a quest. By default, the sages are Simeon Silversweater as the Sage of Practical Magic, L. Faba as the Sage of Mischief Magic, and Morgyn Ember as the Sage of Untamed Magic.

The "Magic HQ" consists of three above-ground floors (though only two are accessible) and two basement floors. The first floor foyer has doors to other areas in the building and stairs leading down to a small dueling area. Other rooms on the first floor include a kitchen, a bathroom, a study and a library. The second floor has three rooms with cauldrons, presumably one for each of the sages, as well as a meeting area. The basement includes another library, another bathroom, and a bar.

Casters Alley
One of the floating islands in The Magic Realm is home to a marketplace for spellcasters, known as Casters Alley. There are three vendor stalls to purchase from: one for wands, spell tomes and familiars, one for magic brooms and crystals, and one for alchemy ingredients. Each stall is staffed by an "Astral Projection Vendor", who have the appearance of ghosts but are not actually ghosts. Casters Alley may be a spoof of Diagon Alley from Harry Potter.

Dueling grounds
The dueling grounds can be found on another floating island. Spellcasters can specifically challenge each other to a magic duel at the dueling grounds, rather than just at a nearby clearing.

Gardens
The third floating island is home to gardens and a destroyed greenhouse. Sims cannot enter the greenhouse, but the outside has plenty of plants and resources to harvest for potion brewing. Mandrake and Valerian plants naturally occur here.

Notes and references
Le monde magique Волшебный мир Kraina magii Het Magisch Rijk