The Mysterious Benedict Society by Trenton Lee Stewart

The provided text, excerpted from a novel, details the adventure of a young, intelligent boy named Reynie Muldoon who is recruited by the mysterious Mr. Benedict for a secret mission, along with three other gifted orphans and runaways: Sticky (George) Washington, Kate Wetherall, and Constance Contraire. The children are sent as undercover agents to the Learning Institute for the Very Enlightened (L.I.V.E.) on Nomansan Island, which is led by Mr. Benedict’s twin brother, Mr. Ledroptha Curtain. The Institute is the source of a sinister global plot where Mr. Curtain is broadcasting hidden, mind-altering messages via television and radio to manipulate the world by creating widespread fear, with the ultimate goal of making everyone loyal to him through a device called the Whisperer. The agents navigate various challenges and close calls, eventually leading to a dramatic climax where they successfully disable the Whisperer, exposing Mr. Curtain's plan and securing their own future with their newfound family, as Kate discovers her father, Milligan, and Sticky is reunited with his parents.