Stella's face turned red when she finished speaking. I wanted to tease her more, but Stella dropped her shy demeanor. She bit her lower lip and glared at me fiercely. She looked like she would fight me if I said another word. Holding back my laughter, I raised my hands in surrender. "Now let's see if what I'm making is indeed a magical device." I bent a branch, then wrapped it with a rope until it looked like a tennis racket. "Oh, I get it. Zack, you're making a tennis racket so we can exercise and stay warm, right?" Zoe raised her hand excitedly, her big eyes blinking at me. Amused by Zoe's innocence, I shook my head and said, "Of course not. But if you ever want to play tennis, I can make a real racket for you." "I'll show you how it works," I said, tying the rest of th