Negima!? Magister Negi Magi Episode 25: And with That, the Case Is Closed!
Episode 25 of 26 of Negima!? Magister Negi Magi, aired March 21, 2007, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Class 3-A keeps watch on Anya while preparing the school for a big party! Meanwhile, Negi decides to investigate the mysterious light that helped him avoid being trapped in the Star Crystal forever.