Legendary tales in Crichton's novels

In several novels, Michael Crichton revisited legendary tales, retelling them in the context of his stories.

Eaters of the Dead/The 13th Warrior includes the Germanic heroic legend of Beowulf:

 
Right: The Prologue of Beowulf as preserved in the ‘Southwick Codex’. From the British Library.

Pirate Latitudes revisits the nordic legend of the Kraken:
 
Right: Pen and wash drawing by malacologist Pierre Dénys de Montfort, 1801

Congo was meant to be a new look at the Victorian adventure King Solomon's Mines by H Rider Haggard:
 
Right: First edition cover of H Rider Haggard's novel

An unpublished screenplay by Michael Crichton titled GENES is a modern look at the story of Frankenstein: