I have two guesses concerning Byzantine histories written in (mostly) Attic which might be longer than the Attic version of Harry Potter:
- The History of the Wars by Procopius dates from the 6th century. It encompasses five Loeb volumes, but I'm not sure that it rivals Anna Comnena's work mentioned by Irene. Also, I'm counting it as one work despite the fact that it covers the Persian, Vandal, and Gothic wars respectively.http://en.wikipedia.org/wiki/Procopius
- The History by Niketas Choniates. This might be as long as the Alexiad. Surely both are longer than the Attic edition of Harry Potter.http://en.wikipedia.org/wiki/Niketas_Choniates
The work in Greek- amazingly based on the newest edition- can be found here:
(Historia (= Χρονικὴ διήγησις), ed. J. van Dieten, Nicetae
Choniatae historia, pars prior [Corpus fontium historiae Byzantinae
11.1. Series Berolinensis. Berlin: De Gruyter, 1975]: 1635, 637655.)http://www.phys.uoa.gr/~nektar/history/ ... storia.htm
If Byzantine "Koine" Greek is allowed for comparison, then George Synkellos, Theophanes and Zonaras would surely be rivals in length as well.
I can barely read over the sack of Constantinople as described by Choniates...to this day I have not read it in full in one sitting. The destruction of rare works of history and the melting/destruction of precious works of art is so disturbing. The Latin sack of Constantinople in 1204 was incredibly destructive and merciless. Concerning my readings, I'm referring to the English translation by Magoulias, not the Greek text.
ἀλλ' ἔγωγε ἐξ αὐτῶν τούτων μᾶλλον αὐτὸν τεθαύμακα, ὅτι ἔν τε ἀλλοκότοις καὶ ἐν ἐξαισίοις πράγμασι αὐτός τε διεγένετο καὶ τὴν ἀρχὴν διεσώσατο. Dio LXXII 36.3