Book excerpt: Towering, rocky mountains, and a very dense evergreen forest surround the Railway line and a Railway cabin. A few kilometers away from this cabin, deep within the Sahyadri mountains, lies a small eco-friendly house. Chinmay Kulkarni has inherited this house. But he has avoided this house since, on his very first visit, he experienced a few paranormal activities. He asks the Shaishav-7 for help. The Shaishav-7 is an adventure group of seven teenage boys studying in the Shaishav School in Vadodara. They are also Sleuths. After their SSC board exams, they are in high spirits and have planned to go on a few adventures. But they dutifully take up Chinmay’s case. They arrive at the house on the day the first monsoon rains also arrive in the region. But they are soon in the crosshairs of an old enemy – a continuously evolving, waxing, and waning shadow, which shows its presence and follows them through their adventures. The boys know that they must strengthen and defend themselves and an ancient and eternal Civilization before this shadow engulfs everything.