Edgar Rice Burroughs 
The People That Time Forgot 

The People That Time Forgot is a fantasy book by American author Edgar Rice Burroughs, this is Burroughs's second book in his Caspak trilogy. The pulpy male adventure is found in The Land that Time Forgot. In the first tale, a shipbuilder named Bowen Tyler and his love interest Lys La Rue is on a cruise ship headed for France when a German U-boat sinks it. Following a grueling series of action scenes, the couple and their devoted dog are left stranded on an uncharted continent known as Caprona, or Caspak by the locals. Then, the story takes a turn to Tom Billings, secretary of the Tyler shipbuilding business embarks on a rescue mission to the ancient island of Caspak in order to save his friend, but after his aircraft is shot down by a pterodactyl, he is forced to enlist the aid of a stunning cavewoman to navigate the increasingly sophisticated human societies that live there. In the sequel, the book prompts a hunt for the missing survivors aboard the yacht "Toreador" under the direction of Billings, a former Tyler classmate. This story can take the readers to an adventurous emotion that how Tom Billings successfully turned his rescue mission!