Read the reflection
The official overview places the Trader’s Mirror Isles to the east. Mirrors swap the character and objects with their reflections; moving farther from the mirror projects the reflected position farther away.
Check where you will arrive
The recorded demo Q&A warns that travelling to the mirror ghost’s position can drown the character if the destination is unsafe. Treat the ghost as a destination to inspect before committing.
Keep copies alive
In NoLucksGiven’s demo playthrough, losing a duplicate prevents the room from being cleared. The player rewinds and continues while keeping the copies alive. This is an attributed demo observation, not a claim about an independently tested release build.
Sources
- Official realm overview
- Demo Q&A narration — Jonathan Blow highlights
- Mirror Isles demo narration — NoLucksGiven
Information checked October 2, 2026. Demo and pre-release details remain scoped to the sources described above.