Shakugan no Shana Episode 24: Crimson Thoughts
Episode 24 of 24 of Shakugan no Shana, aired March 21, 2006, 25 minutes. Available with English subtitles and dub where released.
Episode summary
After managing to defeat Hecate, the city is about to be destroyed regardless. However, there is one final plan, though Shana's life may be on the line if it succeeds.