Embark on thrilling espionage adventures with our Spy Kit, a must-have for young secret agents ready to uncover mysteries and crack codes! This kit comes with an invisible ink pen equipped with a special UV allowing agents to write hidden messages that are only revealed when illuminated—perfect for sending top-secret messages to fellow operatives or leaving clues for future missions. This kit provides endless opportunities for excitement and adventure! Each kit comes with: - One 4”x6” spiral-bound notebook with letterpress cover - 40 unlined sheets for sketching and notes - miniature pencil - Invisible ink pen with light (color varies) - muslin bag to for easy organization and carrying - Packaged in a sealed cello sleeve