Overview of the immune system via a time-traveling adventure to Arthurian England. Assemble your Immune Platoon. Assail the ramparts of Fortress Germhold and learn about how your body fights off invaders.Build your own castle and defend it from the germy hordes.Hug your buddy Luke the Leukocyte (he's so cuddly).Bandage up your buddies.Filled with one-of-a-kind activities, a full-length comic packed with adventure, and a magnet latched castle box with paper toy turrets, this incredible activity kit promises endless hours of fun (and learning). Kit contains: Like the Leukocyte plushie; Customized Leather Pouch; Hand Sanitizer; Customized Adhesive Bandages; Castle Box with Magnetic Lid; Paper Toy Knight and Dragon; Paper Toy Tower Wraps; Thermometer; Calligraphy Marker; Time Skaters Original Comic; Adventure Guide; Sticker Sheet; Get Started Guide.