As I recall there was quite the fashion for ignoring her parentage before the Dark Lord came to power; the tome is exceedingly useful, and if I recall correctly, her Third Sequence may be useful in my analysis of the Sleeper potion.

As I do not think it wise to bring it back to Hogwarts with me, if you could forward it on to McGivern at Moddey, he would be able to pass along the pertinent pieces.