Tip: The easiest way to tell if you're in an echo is actually the music. There is a certain track that only plays during the echo that is handy to identify, since it usually starts whenever you whoosh into an echo.

Ideas:
- Nielle's killer could be the same hooded figure that memory-wiped the dreamers in hatching-tide.
- The "greater threat" could be the primal that stopped the advance of Garlemald. This would of course make the echo-scenes up to 15 years in the past.
- Thancred, like Papalymo, is looking for information on how Ul'dah could plausibly fight the Garleans in a war. The thaumaturgical technique is his answer, because the power of necromancy would give you a limitless supply of soldiers. Of course then he stumbles on new issues, such as the echo and the "greater danger" that warrant new attention by the circle of knowing.