The Time 5 Faerie Glade spell affects an area and speeds up or slows down time inside. However the spell can be resisted with a reflexive roll. Success on this roll would mean that that creature is unaffected, while time for everyone who failed to resist and for all objects is altered. I would expect this to result in effects similar to Acceleration or Chronos's Curse due to the change in relative time flow. But the description makes no mention of this issue and from the presented example it seems clear that this is not how the spell is intended to work.
How would such a situation play out?