The Shadow Realm is a dark, magical world in Spyro: Shadow Legacy that looks almost exactly identical to the real world, but bearing a black-and-white color theme. The Sorcerer used the Shadow Realm to his advantage by trapping anybody from the real world into the shadow realm inside magic cages in order to drain them of their magical energies.
People who are in the Shadow Realm can walk through wood, although people outside the Shadow Realm cannot be seen by those inside the Shadow Realm, but they can be detected by magic. Some things in the Shadow Realm do not exist in the Dragon Realms, and vice versa. Once, the Sorcerer tried to send all residents of the other world into the Shadow Realm and trap them there forever, but his plan was ruined by Spyro.
The Shadow Realm made its appearance shortly after the game's introduction, appearing as a wave of crackling, dark magic that pulled everyone in the Dragon Realms, Avalar, and the Forgotten Realms into the dark, alternate dimension. Spyro is guided to the safety of the Dragon Dojo by Tomas, who then tasks Spyro to rescue the other Dragon Elders from the Shadow Realm. The Elder, Sensei, teaches Spyro how to battle the shadow monsters in the Shadow Realm that can only be hurt by the art of Dragon Kata.
Two brothers in the Shadow Realm named the Ice Minion and the Fire Minion act as bosses in the Shadow world which can also exist in the real world. The Sorcerer lives in a world between the Shadow Realm which can only be visited when getting the directions on the map from Bianca. He also created a machine to trap anybody in the real world permanently in the Shadow Realm. The machine was destroyed by Spyro before it was activated. After the Sorcerer's defeat, he escaped to somewhere else in the Shadow Realm, and the dark realm itself wasn't seen again.