Fourteen-year-old Aaron Greenburg is trapped in a vegetative state. He's awake and aware of everything around him, but the doctors don't realize it. After being placed in a care facility, he receives a new roommate--Solomon, an old eccentric jazz musician with dementia. When Aaron talks in his mind to stay sane, Solomon hears his thoughts and replies. But no one believes that Aaron and Solomon can converse, except for Solomon's teenage granddaughter, Sarah. When Solomon relives the past during his dementia episodes, Aaron joins him in those moments in time to experience 1920s New York City, getting into a scuffle with the mob in a Chicago nightclub, fighting in World War II, and much more as the two develop an unlikely and unique friendship. Four Years in My Mind Palace is a humorous and heartwarming coming-of-age story, entwined with an end-of-age story, that will capture your imagination and renew your faith in the power of friendship.