[1] Hard Case Crime republished the novel under Crichton's name in November 2013.

On a secret island in the Caribbean, bio-engineers have devised a vacation resort like no other, promising the ultimate escape.

But when Dr. Roger Clark investigates, he discovers the dark secret of Eden Island and of Advance Biosystems, the shadowy corporation underwriting it.

[2] Film rights were optioned in 1970 by the actor Robert Forster and his agent David de Silva, to produce a film starring Forster called High Synch.

"Unlike the book, our script will not have a happy ending", said Forster.