Warriors 4 : Rising Storm Hunterov Erin (2015)

The fourth book in Erin Hunters #1 nationally bestselling Warriors series brings more thrilling adventures, epic action, and fierce warrior cats. Firehearts traitorous enemy Tigerclaw has been vanquished and exiled from ThunderClan, but Fireheart cannot shake the feeling that he is lurking in the forest, waiting for a chance to strike. In the heat of a blazing summer, Fireheart struggles with sinister omens, an apprentice with a shocking secret, and a devastated Clan leader who is a shell of her former self. As the forest grows hotter and hotter, every cat braces for the coming storm.