Shadowgate is a small town at the feet of the Barrier Mountains north of Deltora and it lies near the passage which leads from Deltora to the Shadow Lord's kingdom known as the Shadowlands. It is also primarily featured in the titular book "Shadowgate" of the Deltora Quest series.
The passage's walls are filled with small holes which is home to Bubblers, small and pale boneless creatures, which looks a little like a sea cucumber. They exude thick, frothing white slime, that greases the rock, allowing the Bubbler to squeeze out of narrow cracks and holes.
There are dangers everywhere in Shadowgate, and life there is harsh.
Doran the Dragonlover visited Shadowgate on his journey around Deltora, writing the book "Secrets of Deltora".