This is a set of books 1-6 in the WARRIORS: OMEN OF THE STARS series by ERIN HUNTER. All books are paperback and most are in very good condition showing light wear around the edges. Some books have a blue sticker on the upper right corner of the front cover (see pics). Titles included are:
1. THE FOURTH APPRENTICE
2. FADING ECHOES
3. NIGHT WHISPERS—light creasing on the front cover
4. SIGN OF THE MOON
5. THE FORGOTTEN WARRIOR
6. THE LAST HOPE—light creasing on the front cover.