Skies of Fire wrote:Environment. When Skies of Fire is played, all hazard environment cards in play are immediately discarded, and all hazard environment effects are canceled. This card acts as Gates of Morning for the purposes of interpreting hazards. Cannot be duplicated. There was a flare of livid lightnings: forks of blue flame springing up from the tower...into the sullen clouds.-LotRII
Peril Returned wrote:If Gates of Morning is not in play, Doors of Night is considered to be in play. If Gates of Morning is in play, it is considered to be out of play while Peril returned is in play. Gates of Morning may still be removed normally (e.g., through the use of Twilight, Doors of Night, etc.). A shadow came out of dark places far away, and the bones were stirred in the mounds.-LotRI
Crown of Flowers wrote:Environment. Crown of Flowers has no effect until you play a resource with it. You can play one resource from your hand with this card. The resource is considered to be in play as though Gates of Morning were in play and Doors of Night were not. Crown of Flowers does not affect the interpretation of any card except the resource played with it. Discard Crown of Flowers when the resource is discarded. Discard the resource if Crown of Flowers is discarded.
So there are in play the cards Skies of Fire, Peril Returned, and there is not the card Gates of Morning.
Peril Returned causes presence of Doors of Night in play, for all purposes. Skies of Fire does not cause presence of Gates of Morning in play, it acts as Gates of Morning for the purposes of interpreting hazard.
Question is whether Peril Returned's effect affects (nulify) Skies of Fire's effect, or Skies of Fire's effect is independent from presence of Doors of Night in play.
In second case it would be possible that for the purposes of interpreting hazards, both Gates of Morning and Doors of Night would be considered as present in play. Second effect of Fell Winter would be in force and result of Glance of Arien would be increased.
My answer is: the second.
If presence of Gates of Morning and Doors of Night would preclude each other, then "and Doors of Night were not" in phrase "The resource is considered to be in play as though Gates of Morning were in play and Doors of Night were not." (in text of Crown of Flowers) would not be needed (would be meaningless, redundant).
And effect of Skies of Fire is so local as local is effect of Crown of Flowers, both are independent from global presence of Doors of Night/Gates of Morning in the same way. Global presence of Doors of Night/Gates of Morning does not come after.
Unlike than interpreting of hazards, playing and functioning of certain resources requires presence of Gates of Morning and playing and functioning of certain other resources requires absence of Doors of Night, hence "The resource is considered to be in play as though Gates of Morning were in play and Doors of Night were not." that includes both.
