W 2007, 2008 i 2009 roku pojawiała się trzecia seria, „Potęga trójki”Warriors: Power of Three #1: The Sight, www.harpercollins.com Warriors: Power of Three #2: Dark River, www.harpercollins.com Warriors: Power of Three #3: Outcast, www.harpercollins.com Warriors: Power of Three #4: Eclipse, www.harpercollins.com Warriors: Power of Three #5: Long Shadows, www.harpercollins.com Warriors: Power of Three #6: Sunrise, www.harpercollins.com . W latach 2009–2012 pojawiała się czwarta seria, „Omen gwiazd”Warriors: Omen of the Stars #1: The Fourth Apprentice, www.harpercollins.com Warriors: Omen of the Stars #2: Fading Echoes, www.harpercollins.com Warriors: Omen of the Stars #3: Night Whispers, www.harpercollins.com Warriors: Omen of the Stars #4: Sign of the Moon, www.harpercollins.com Warriors: Omen of the Stars #5: The Forgotten Warrior, www.harpercollins.com Warriors: Omen of The Stars #6: The Last Hope, www.harpercollins.com .