* The whole ''series'' is awash with [[TearJerker Tear Jerkers]], including the deaths of Yellowfang, Cinderpelt, Tallstar, Willowpelt, Snowkit, Spottedleaf, Lionheart, Silverstream, Feathertail, Stormfur and Bluestar.
* The very idea of the Clans leaving the old forest.
* The end of ''Twilight'' is undeniably sad for any Leaf/Crow shippers.
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