It's a solstice baby!

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Across
  1. 3. Name this firebird with healing powers, who belongs to a bearded wise man and not to Tsarevich Ivan.
  2. 5. To whom these lines were adressed: "Give yourself to the dark side" (surname)
  3. 7. The other name of the volcano known as Orodruin.
  4. 8. To whom these lines belong: "Little darling, the smiles returning to the faces"
Down
  1. 1. In the times of danger this superhero glows like a supernova.
  2. 2. Who is the unexpected villain in the movie where these lines are said: “Happiness can be found in the darkest of times, if one only remembers to turn on the light.”
  3. 4. What is the surname of the detective in the series where this poem is heard: “Through the darkness of future past, the magician longs to see, one chance out between two worlds, fire walk with me!”
  4. 6. The name of a very fiery ninja.
  5. 7. A star, but looks like a moon, and not a sun. Instead of giving lives, it takes them.