"Twelve-year-old Marvel is afraid of absolutely everything -- amusement park rides, food poisoning, earthquakes, and that big island of plastic floating through the ocean. She also obsesses about smaller worries like making friends, getting called on by the teacher, and walking home alone. Her parents and the school therapist call her worries an anxiety disorder, but Marvel calls them armor. If something can happen, it will. She needs to be prepared....

Drawn into the mystical world she created, 11-year-old Kiki Kallira must battle against her fear and anxiety to save two worlds--the real and imagined--from the wrath of an ancient deity bent on total destruction.

Twelve-year-old Maddie, who suffers from anxiety, loves music, math, and everything in its place, but when her older brother Strum disappears from his college campus, her family starts slipping away from her.

Twelve-year-old Iveliz is trying to manage her mental health and advocate for the help and understanding she deserves, but in the meantime her new friend calls her crazy and her abuela Mimi dismisses the therapy and medicine Iveliz needs to feel like herself.

Kiki returns to Mysore and quickly learns that drawing a new river doesn't work. In her search for answers, she stumbles upon the origin of the Kaveri: it's actually a princess from long ago who was transformed into water by a terrible curse! It's up to Kiki and her friends to restore the river without sacrificing the princess again---easier said than done! And with her mounting anxiety, enemies seeking to stop her, and a city growing weaker by the...