Forum:Help with Phoenix Gearfried effect

hi, I'm starting playing with Gemini Deck and I have one doubt, Phoenix Gearfried's effect says that if your opponent activates a Spell Card, you can Special Summon 1 Gemini Monster from the Graveyard, if my opponent activates Lightning Vortex for example, and I Special Summon one Gemini from my Graveyard, Lightning Vortex will destroy only my Phoenix Gearfried or will destroy the Special Summoned Monster too?