I have a long track record of loving what I think of “Hidden World” modern fantasy settings. A lot of it comes from my reading of pulp novels as a child, but certainly a number of more recent authors and stories have fed into it as well. Whether it’s magic nannies coming to save children from the troubles of everyday life, caretakers with magic devices in their homes who take in children during the Blitz (and possibly animate armor soldier to fight Nazis), wizard acting like detectives in the modern world, fantasy detectives doing the hard boiled act in feudal settings, magic worlds beneath the streets of London (or New York, or heck Dallas), immortal swordsmen, secret clans of assassins, bounty hunters (literally) from hell, busters-of-ghosts, psychic subcultures, revenant goths, or WWII witches and werewolves, I’m there for it.

Or, you know, ShadowFinder.

Sometimes I have ideas I think would work well within Hidden World settings, often while taking in Hidden World stories and thinking of directions the worldbuilding could go, but doesn’t.

Here are some.

Ancient Wards

Numerous magical defenses have been invented over the millennia, but the most common were developed in the 1200s, 1300s, and 1400s. These wards are far more effective against types of weapons that were invented after they wards were developed. Thus a fist or claw is almost always effective against creatures and mages with ancient wards, and clubs, swords, and bows are more likely to be effective than firearms, flamethrowers, and grenades… though if someone is carrying around an ancient design of Chinese fire lance, there’s a good chance they are doing so for a good reason.

Gravedigger Clan

When you need a body removed quickly and without evidence, but also need it to be treated with respect and buried with honors and traditions proper to its life, you call the Gravedigger Clan. A cult devoted to a wide range of gods of the dead and burial from different pantheons, and devoted to preventing the rise of undead and corpse-curses, the Gravedigger Clan is neutral in all other affiars, and offer their services fast and free to anyone who knows how to get hold of them.

The Mask Arcade

The Mask Arcade is a massive dance club and cocktail lounge that has multiple tiers, indoor and outdoor areas, several different themes, and a number of private, semi-private, and VIP areas scattered about its premises. Numerous street performers wander about at all times, sometimes stunt exhibitions are held, and there are numerous small stages where weird acts can perform. It also requires all attendees to dress in costume, and taking pictures is forbidden and strictly enforced. There’s always a line to get in, and bouncers walk the line and let people with costumes with “the right look for tonight’s theme” go in ahead of the line through various side entrances.

Officially, this is because it’s schtick is to be a nonstop costume ball cranked to 11 that attracts celebrities and . Actually, it’s because the Mask Arcade is designed to be a neutral ground for Hidden World ladies, lords, adventurers, monsters, and agents to meet, move about freely (even if they have horns, or fangs, or wear armored trench coats and carry katanas), and do business.

Ninjamancy

Almost no one is attacked by hordes of ninja. However, all true ninjas are trained in the art of summoning, and everything they summon looks like a ninja, and appears when conjured by stepping out of shadows and from behind cover. These conjureninjas can be used to try to assassinate, or cover a true ninja’s escape, but they are also often used as distractions while the true ninja carries out their actual mission, or as cover to all the true ninja to get closer to a target while looking just like the summoned ninjamancy. As a result hordes of ninja appear to jump out of nowhere, and experienced Hidden World agents know you need to kill them all, because one might be the true ninja you can’t afford to ignore.

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