Firebreeze outlines Mapleshade’s story.
Most people think that Mapleshade is evil, the only reason why she chose to kill the cats she killed will be in the article.
Mapleshade was once a warrior of Thunderclan but fell in love with a Riverclan warrior named Appledusk, moons later she had kits. The warriors of Thunderclan found out that Mapleshade was having kits so of course they would want to know who the father is, when Oakstar (I believe it is Oakstar but I am not certain) found out that she was having kits with Appledusk instead of a Thunderclan cat he was furious and banished her from the clan. Unlucky for Mapleshade and her kits their was a terrible storm. Mapleshade figures that she would go to Riverclan to be with Appledusk for he was her “mate”. So she swam across the river with her kits. Her kits were only just born and still in the nursery and had not yet been out of the camp. Mapleshade lost hold of her kits she was unable to get them back and they drifted off in the current and drowned. Later after she got on the River clan side she noticed that one of the Thunderclan cats Frecklewish (I think) was watching the whole thing a didn’t help Mapleshade at all or even try. Mapleshade was furious! So she quickly went to Riverclan wet and cold. When she got to Riverclan she found Appledusk and told him the story but he told his leader not to allow her into the camp saying that the only reason her kits drowned was because of her telling her that she was not his mate. So of yet another clan she was not allowed into. Cold and hungry she left yet another clan. Mapleshade tried to sleep but could still hear the cries of her kits begging her to save them as they drowned. Mapleshade was driven mad by the cries and thought that if she killed three cats that her kits would be avenged. So she killed Appledusk her “mate” for having her banished from Riverclan, Reedshine Appledusk’s Riverclan mate, and Frecklewish for not helping her save her kits (I believe Frecklewish and Mapleshade were friends in
Thunderclan). Later she went to the dark forest.
This is why Mapleshade killed the cats she killed, it wasn’t for no reason she was just trying to avenge her kits.