Hermine wrote,

"There could be 19,000 Atlantises just waiting to be rediscovered ..."

This means there are potentially 19,000 books about the discovery of the real location of Atlantis yet to be written.

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)