Conan Doyle Book About Search for Dinosaurs the __

This page is the CodyCross answer for the clue below from World of Sounds, Group 1351, Puzzle 3 (Typing and Writing).

Question is: Conan Doyle Book About Search for Dinosaurs the __

and the answer is: LOSTWORLD

Word Meaning:

LOST WORLD — (often attributive) An unknown world out of time, place, or both, the topic of a subgenre of fantasy or science fiction.

Definitions from Wiktionary.