Nine hours into his 1927 historic first solo Atlantic flight, Charles Lindbergh began to see odd see- through creatures climbing all over his craft. "Ghostly presences"...
"I saw them plain as day-transparent forms that moved freely about.."

These creatures talked to Lindbergh, advising him on how to best succeed in his attempt to reach Paris. They also gave Lindbergh advise on spiritual matters.
After safely landing, Charles Lindbergh never told anyone about his experience with these "gremlins" during his epic flight-he would not tell anyone until he published his second autobiography in 1953- "The Spirit of Saint Louis." In this book, he described how these entities were menacing in appearance, yet beneficial in behaviour; these "spirits" saved his life.