Prologue

Everything was going good since Will's shadow coma. Nico and Will's relationship was thriving, until one day Will disappears from his bed. In Will's place is a daughter of Apollo who looks a lot like Will and is his age.
Who is this girl?

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(When it doesn't say a POV it is Nico)
Please read Shadowed Light before this. The story would probably make a lot more sense if you read that first.

I own Cakey and the mystery girl.
@Demigod_HorseLover9 owns Demi.
@BridgetDiAngelo owns Bridget.
@KaitlynMoore573 owns Skylin May
@AmyMayDaughterOfZeus owns Amy May
All other characters belong to Rick "Troll" Riordan.