As Astrid led Hiccup and Heather to the Mead Hall where the other Riders were waiting, Heather seems concerned about her friend.

"Are you sure you want to tell them about her? It's been hard for you, and you intend to have a outburst mentioning about her." 

"Hiccup and the Dragon Riders had shown me that it's ok to rely on others . With the incident of Red Death proves that fact. I wouldn't be alive if that didn't happen. Besides, as far I can see, that they are trustworthy, I did kept some secrets about my past they haven't known about as Valkyrie." 

The gang gathered around, as Snoutlout was curious about Heather. "I never seen you before. Are you acquitted with Astrid?"

Heather was silent, as Astrid nods, "She is. Everyone, this is Heather, she is old ally of Toothless and me. 

Heather, meet the Dragon Riders." 

Hiccup said, "So, you went to Heather for help. Was it because of the arrow that shot us with earlier part of it?"

"Yes. I guess that I should tell you guys about my life as Valkyrie. Well, the first thing you should know, being a vigilante isn't all that easy. It is a very complicated lifestyle. 

At first Toothless and I were barely getting by, as the weather was unbearable. That is where I met the first friend I've met, or I thought she was one." 

Toothless cuddles her, as that the dragon knew how much the betrayal hurt her. 

"She was a friend you trusted. What happened?" Hiccup asked, being curious. 

"She used to help us train new children to become riders. At first it seems so normal, like she was devoted and loyal. I was her teacher. Our student-teacher relationship was so gentle and strict. 

She loved the attention and instructions that I have given her, as that teaching her wasn't all too bad. 

That is what I originally thought. One night, she secretly formed a ragtag group of riders called themselves, "The Black Dragon Riders." 

With her as their leader, she rebelled, attacked villages with dragons in tow, and kidnapped every child from their families and sold them into slavery with no mercy. 

The arrow is deadly as well. It is Dragon Root. It affects every dragon to go berserk. Her name was Isabelle." 

The whole room was silence as to grasp of what this new threat had risen. 

Fishlegs was the only person who broke that silence. "Isabelle is some friend. Honestly, I can't believe she trained under you and that she broken your trust like this." 

Hiccup points out, "Hey, how you think I felt when I first discovered Astrid was alive with Toothless? 

I betrayed everyone's trust, even to my own father! I do understand where's she is coming from though. 

What we do to stop her?"

Astrid seems bewildered by how much Hiccup was willing to help her. "Are you sure you want to help me?

Hiccup, it'll be too reckless and dangerous." 

The viking raised his eyebrow at here, "Did you really think that I would stop you? C'mon, you and Toothless face a massive dragon like the Red Death for Thor's sake! 

Besides, we can help each other." 

Astrid looked around her as the riders were ready to go against Isabelle head on. Toothless chuckled, "I think that Hiccup and the others wouldn't be stopped even if you wanted to, Astrid. It's their choice to help."

Astrid sighs, "Fine! You guys win. Let's do this." 

Author's note: What you guys think of this chapter? Find out what happens soon! - Jan