Maybe new facts?

Here is the discription for Hollyleaf's Story from amazon.com it might be old news, but here it is anyway!

"When Hollyleaf disappeared in the tunnels by the Lake, ThunderClan believed she was gone forever. But her adventure was only beginning. . . .

Lost and lonely, Hollyleaf soon meets a mysterious cat named Fallen Leaves, who teaches her how to live in the tunnels. Hollyleaf tries to be happy, but she can't help wondering if leaving her Clanmates was the right choice. Hollyleaf knows she's a ThunderClan cat at heart, but can she ever truly go back?"

• Maybe she meets other ancient cats as well? We might learn more about the ancient cats in this too
• She might have talked to cats from other clans
• It is rumored that she helped lead Lionblaze (Lionpaw, at the time) out of the tunnels when they were flooding
• Erin dropped hints throughout the books about a strange cat in the tunnels, maybe those events will be described in the book