Bertxi, it's a cool thought, that the tusk is inscribed with the gods of the inchoroi.
But it is really hard to say whether or not it is, because it can go either way.
1. Either every reader in the world except Bertxi has screwed up and Bakker meant his words literally, wrote the line with a gramattical error and the context doesn't change them: the Tusk is inscribed with the gods and sacred text of the inchoroi.
2. Or Bakker made a minor error in subject/object wordplay, the tusk was inscribed with the gods and sacred texts of the Eanna, that minor error is easily/automatically/thoughtlessly corrected by all the readers in the world except Bertxi via the larger context.
3. Bakker wanted it deliberately ambiguous, but thought it would be fun to hide the ambiguity where no one would see it, under the giant waving revelation banner of the Tusk's origin/falseness. All the readers in the world missed this possibility/detail because we were so excited about the macro of the statement.
4. You're Bakker and you cannot conceive that all of us have missed it, and it's driving you nuts that we haven't figured this out yet; if so it's your own fucking fault for writing it so poorly if you wanted us to realize that.
The likelyhood is that 2 is correct, but the best evidence in your corner is that Bakker is usually rather careful, however, failing to be ubercareful in attributing the proper subject when talking about multiple subjects is one of the most common mistakes of written english (and sometimes conversational english it happens as well, but people usually self correct or hear the ambiguity when it's said out loud).
It seems to me it is just a grammatical mistake, the final proper noun of the ambiguous passage in question is KETYAI. This is followoed by "their." English grammer demands that readers interpret the "Their" as referring to the most recent personage, in this case the Ketyai. However, reading it like that, makes the sentence make no sense, because then it reads that the Ketyai gave themselves a tusk. Looking back you see that a different proper noun was the active subject before the mention of Ketyai, therefore it is reasonable to assume the first "Their" means The inchoroi.
The question then is does the first and second "THEIR" match in the sentence that follows the invocation of the Ketyai? They should match, but we've already seen that context indicates a significant grammatical mistake has already occurred within the sentence because of unclear writing, so we cannot assume that the two occurrences of "THEIR" match. These two Theirs could be each referring to different subjects. Considering the first one is cocked up and is right next to the subject it is supposed to belong to but does not belong to it is reasonable to assume the second THEIR is cocked up as well and does not pair with the first THEIR but belongs to the proper noun it grammatically should belong to, Ketyai.
In any event, Bakker screwed up in the writing of that particular answer, you are correct that a literal reading does suggest Inchoroi is the possessor of the THEIR, but the presence of the word Ketyai screws things around and opens the door to many reasonable alternative readings and is the reason that no one has considered the possibility that the tusk is inscribed with the gods and sacred texts of the inchoroi.
If we have all missed this revelation we can all blame bakker for doing it wrong. :-p
these four iterations are subtly different, but the latter two say the same thing. The first one, Bakker's text, could match the latter two, or it could mean what the fourth one says.
They gave the Chorae to the Five Tribes as gifts, and to one tribe, the black-haired Ketyai, they gave a great tusk inscribed with their hallowed laws and most revered stories–as well as one devious addition: the divine imperative to invade the ‘Land of the Felled Sun’ and hunt down and exterminate the ‘False Men.’
They gave the Chorae to the Five Tribes as gifts, and to one tribe, the black-haired Ketyai, the Inchoroi gave a great tusk inscribed with the Ketyai's hallowed laws and most revered stories–as well as one devious addition: the divine imperative to invade the ‘Land of the Felled Sun’ and hunt down and exterminate the ‘False Men.’
They gave the Chorae to the Five Tribes as gifts, and to one tribe, the black-haired Ketyai, was given a great tusk inscribed with their hallowed laws and most revered stories–as well as one devious addition: the divine imperative to invade the ‘Land of the Felled Sun’ and hunt down and exterminate the ‘False Men.’
They gave the Chorae to the Five Tribes as gifts, and to one tribe, the black-haired Ketyai, the Inchoroi gave a great tusk inscribed with their hallowed laws and most revered stories–as well as one devious addition: the divine imperative to invade the ‘Land of the Felled Sun’ and hunt down and exterminate the ‘False Men.’