Please don't present your pet theories as fact. You cannot support this with any actual evidence, and you know it. Erichek deserves a complete answer to his question, so I'll give him one:
"The File on the Tsar" is a book that is out-dated. The authors were writing with the information that was available in the mid-70s -- just like Bob Massie, who wrote "Nicholas and Alexandra" in the 60s. Mistakes were definitely made in both books, though they could not have been identified at the time because of the paucity of information available from the Soviet Union.
The difference between Massie's "Nicholas and Alexandra" and S&M's "The File on the Tsar" is this: Massie wrote a narrative history, S&M wrote and investigatory work. In an investigatory work, you take bigger chances, and theorize on a larger scope. So it turned out that S&M's book did fail in several major ideas. HOWEVER -- and this is a big "however" -- there IS information in "The File of the Tsar" that is valid today, such as the work Summers and Mangold performed on the topic of cremation and its related forensic areas.
Another area where the were right was the subject you brought up in this thread: There was indeed an extensive search for missing members of the Imperial Family, and this is borne out by testimony from several disparate sources, including Princess Helen of Serbia and her secretary, Serge Smirnov, who recounted his experiences with this search in "Autour l'assassinat des Grands Ducs...".
"The File on the Tsar" should certainly be read with a careful eye, but not necessarily a jaundiced one.
A person also needs to realize that when the Whites entered Ekaterinburg, they were not there to rescue Nicholas II and his family.
There was a war going on between Whites and Reds and at this time neither were interested in placing Nicholas II back on the throne. True, there were many who remained loyal to Nicholas II, however, they were the minority in 1918.
Anyway, the Whites entered Ekaterinburg a few days after Nicholas II was said to have been executed and were told that Alexandra, the daughters and Alexei had been taken elsewhere.
All kind of false information ["red herring" and "white herring"] spread from Ekaterinburg to the rest of the world from that point forward, to the present and probably will continue....
But why would the CHEKA [pre-rummer of the KGB] spread a rumor that Anstastia and Alexei had escaped? Saying someone "escaped" and saying they had been taken to a secret place were entirely different and there was not reason to say someone "escaped" if they had been taken away under Red guards.
And, yes, there were many eye wittnesses who saw Red soldiers searching woods, trains, villages, etc. for missing Romanovs.
Reports of "escape" or "we saw Alexandera and three of her daughters in Perm" were absent in the Sokolov's report. He was the one who ended up being the so-called final word on the Whites investigation of the events of the night of 16/17 July 1918 in the Impatiev House. But not absent in Summers' and Mangold's book. And, like Penny said, there has been a lot more discovered by her and Greg for their book and what they hope to publish.
Why would Sokolov's report omit some valuable information? Many think it was because the information wasn't true and merely fabrication by the Bolsheviks. But, if you dig a little deeper you discover that it wasn't in the best interest of the Whites to reveal all of the truth of what happen. It was best, the general's [Dieterikh and others] give evidence to their soldiers which told everyone that the "bloody Reds" not only killed Nicholas II but they "cold bloodiedly" killed his wife, his four daughters, Alexei, and their friends. Why was it in the Whites' best interest? They wanted to stir up the emotions of their men who were weary of war.
My thoughts are: Somewhere in the middle of all of the information, be it true or fabrications, we can find what really happen. So, not reading old books like Summers and Mangold is not allowing yourself the opportunity to learn information which you will not read in other books.
AGRBear