Helena Flinn's lifelong battle with sleepless nights is just the beginning of her journey into a hidden realm that holds the secrets of dreams.

Every night, Helena Flinn struggles with terrible sleeping disorders, until a secret world springs to life beneath the bustling streets of Vienna. It all starts with an unexpected meeting with a curious creature who desperately needs her help.

This hidden realm, filled with unusual energy and bizarre gadgets, is like nothing she has ever seen. A brave girl full of imagination, Helena and her new-found friends-kids who share her struggles with sleepless nights-descend into a world of science and engineering, and together they face a new threat to both dreams and the waking world. Along the way, Helena discovers the true power of friendship and the strength that comes from being surrounded by like-minded people.

With each step, she uncovers truths about her own power that intertwine with the creatures of the night. Can Helena and her unusual friends stop the nightmares before they break into the daylight?

Fans of 'Arlo Finch, ' 'Percy Jackson, ' and 'Nightmares!' will love Helena Flinn's enchanted world, a place where secrets are powerful and friendships are strong enough to fight any darkness.

Leap into Helena Flinn and the Secrets of the Night and join Helena's exciting adventure to guard her friends and, ultimately, the city.