Thanks @ShinySylveon99 for the last fact!
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-Since Cinderpelt was in love with Firestar, she found it hard to be empathetic to Leafpool when she wanted to be with Crowfeather.

-Mapleshade could've been the reason for Snowfur's death.

-Vicky thinks Mapleshade being related to Bluestar would be cool.

-Spottedleaf was destined to die saving Sandstorm. This explains why Yellowfang was insisting Firestar to let her follow her destiny when she was fading away.

-In the German version of the series, Brightpaw is named Cornpaw.