Is there a book called "The Curse of the King"?

I'm not sure which you want to know about - the curse of the king or the curse of the Sphinx, as you ask about both. Is it possible that you're talking about the Curse of King Tut's Tomb? Or the curse of the mummy?

FYI, a few places to find about any books publisbhed is to submite a web search in search engines such as Google, Wikipedia or Snswers.com

Here's a few links when I submitted the keywords into Google search and Wikipedia:

http://www.kingtutone.com/tutankhamun/curse/

http://en.wikipedia.org/wiki/The_Curse_of_King_Tut%27s_Tomb

Or perhaps it's taken from the book which quotes from the bible's excerpt of Ecclesiastes: 'Curse Not the King'

http://www.abebooks.com/servlet/SearchResults?&isbn=0340487623&nsa=1

Internet search did not answer my query, and that is why I came up here.
I have found the excerpt. Will post back after googling character names.

Duh. Google doesn't turn up anything. One of the characters is Sir Edward Travers, who's died -- thanks to the "curse". There's wild consternation concerning his death. And there's this Miss Osmond, and her beau Tybalt.

Anybody?

You may want to try Answers.com. There's a bunch of leads here:

I found it on Answers.com: The Curse of the Kings (1973)

RC 55894

The Curse of the Kings
by Holt, Victoria

Raised an orphan, Judith Osmond learns that she is the illegitimate daughter of a wealthy squire. Hopelessly in love with Tybalt Travers, an archaeologist, she accepts his sudden proposal of marriage and accompanies him on an expedition to Egypt, where two scientists have mysteriously died in the Pharaoh's tomb

Victoria Holt:

http://www.answers.com/victoria%20holt

If you want to by used copies of The Curse of the Kings, go here:

http://www.alibris.com/search/books/qwork/1438563/used/Curse%20of%20the%20Kings

Spidergal: does this help?

Extremely helpful, Ragman. Thanks a bunch!