The Princess has called for Twilight's help, but what they face is perhaps the most terrifying threat of Equestria's past. Maybe. Possibly... Not Likely.
In which Celestia is in character, Luna's unreasonably pacifistic , Fluttershy shows astounding acts of bravery (in speaking aloud), and Pinkie's parties become exclusive.
Also, Discord makes a stunning revelation.
For a moment here, I read the title as 'Incineration'
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Glad to hear.