Lionblaze is an attractive young WindClan apprentice named Heatherpaw convinces him to form a play Clan called DarkClan inside the underground tunnels, with the leader being Heatherpaw and the deputy being Lionblaze, under the assumed names Heatherstar and Lionclaw, respectively. Lionblaze unknowingly falls in love with her, and she falls in love with him. Hollyleaf and Cinderheart find out about the meetings, and Hollyleaf threatens to tell. Lionblaze hates her nosiness. He enjoys the secret night meetings immensely, but falls behind in his training. One night, Lionblaze teaches Heatherpaw some of Tigerstar's moves and Hawkfrost gets angry, later rebuking him for teaching battle techniques to the enemy. He tells Lionblaze that Heatherpaw will probably use them against him in battle. Lionblaze is devastated, and tells Heatherpaw that he won't see her anymore. She is deeply hurt, but Lionblaze stays true to his word.