Based on the works of David Gemmel's Ghost King. In my design of the series, this world follows the form of a stealth-action video game set in mid 17th century France, on the cusp of the Revolution.
The king had been slain by conspirators, and the blame falls upon a middle aged inventor, Culain --in whose veins flows the blood of kings. You play as Culain on a quest to clear his name and bring balance to the Kingdom.
The glider is designed for a unique way to traverse this world of The Ghost King and is foldable into a compact backpack, the gauntlet has a retractable crossbow for a quick offensive and the mask signifies the Freedom and Justice every time Culain dawns the identity.