Although Ab8-64 obviously connects visually to the earlier Aa4-34 (and also by way of the sign 1314 - 285 = 1029, i.e.10 months à 29 days) it is the 'high point', te pito uta, Aa4-39, which is located at position 290, and therefore - presumably - the 'low point' cannot be at Ab8-64. We have earlier located it to Ab8-43, o te pito motu, the island navel - 'cut off', motu, should probably mean 'island' here, because 'the water' surrounds:

4 and 20 presumably are to be added (like moon and sun) into 24. The two prominent henua glyphs together 'contain' 1028 glyphs, maybe alluding to 10 months with 28 days in each.

304 = 16 * 19 is another way to state a conjunction between moon and sun.

1024 is expressing 'growth' (by way of being a 'chessboard' number). At Ab8-64 growth caused by the rays of the sun has reached its limit. Can really the 'high point' at Aa4-39 refer to midsummer? Presumably Metoro instead meant the beginning (navel) of the road upwards.

4 * 34 (in Aa4-34) = 136 = 2 * 68 may indicate a division of the rising sun season in two parts similar to that in G.

If we use 2 * 70 instead, we will reach 4 glyphs further, up to Aa4-39. And 4 * 39 = 156 = 6 * 26.

156 - 136 = 20 (sun) and 156 - 140 = 16 (moon).

We can guess (but hardly predict) the existence of haga takaure some 140 glyphs before te pito uta (for the moment assuming it marks high summer):

From Aa2-64 we can derive 128, a growth term (twice the area of a chess-board). It is a strong sign, overruling 2 * 68 = 136.

Between the variant of henua in Aa2-66 and Aa4-34 there are 128 glyphs, possibly expressing 4 * 32 days. If 136 (at Aa4-34) says '1st 36', meaning the first third of the year, the year will be 12 * 32 = 384 = 4 * 96 days. Counting 136 - 96 = 40, the 384-day year then ought to begin with the 41st glyph from Aa1-1:

Aa1-37	Aa1-38	Aa1-39	Aa1-40	Aa1-41	Aa1-42	Aa1-43

But tagata in Aa2-59 should mean that 4 true lunar months (4 * 29.5) have ended. Then we expect sun to arrive in Aa2-60, and indeed the right side of pure seems to indicate a difference.

290 (Aa4-39) - 154 (Aa2-64) = 136 = 2 * 68, and Aa2-64  may be announcing the arrival of spring growth, 2 * 64 = 128.

Aa2-64 should then be connected with Aa4-39 (the summer peak), while Aa4-34 could be connected with Aa2-59--60 also 136 glyphs (days) earlier. Maybe Aa2-60 and Aa4-34 are members in a sequence stretching up to 360, while Aa2-64 and Aa4-39 are steps on the way to 364.

Metoro's words are as always important to observe:

Aa2-59	Aa2-60	Aa2-61	Aa2-62	Aa2-63	Aa2-64
koia	tona purega	ka moe	ki te hoga ka rogo
Aa2-65	Aa2-66	Aa2-67	Aa2-68	Aa2-69	Aa2-70
ki te honu	no te henua	ka hua nei te poporo	ka ero nei ia - ma te maro	i vai o rima	ma te nuku

Rogo possibly is the 'person' who announces the arrival of summer.

Roko Ma.: The deity Rongo: Ka ki atu a Tu raua ko Roko ki a Rehua. Rokohaga, to be overtaken or come upon; to be reached: Rokohanga e te ponga, rere noa atu, Ka rokohanga hoki e te uranga mai o te manuhiri nei. Cf. rongo, to hear, to feel, to smell, &c.; tidings, report. 2. To be remedied: He mate kai e rokohanga, he mate anu ekore e roko hanga. Text Centre.

Rehua is a prominent star, probably Antares (Ana-mua), and Rogo is associated with the beginning of the year. It is therefore natural, I think, to mention Roko first and then Rehua - new year comes before summer. Beyond Rogo at Aa2-64 light should return.

Is there a word play with Ko Roko for new year and Ko Koro for new 2nd half of year?

As to ero we have met the word once before:

Aa1-16

ka ero

It also occurs once in Mamari:

Cb9-1	Cb9-2	Cb9-3	Cb9-4	Cb9-5
Vai o ero hia	kua tere	ki te marama	kua oho	ki te Rei - ku mata kuku

Presumably ero refers to early 'dawn' light.

We should continue to 360 and 364:

The very strange Aa5-31 possibly indicates a kind of fish diving down ('finished'), and I have labelled the glyph type tahana (after Metoro). I don't know yet what the word means.

With the great bird (manu rere) at Aa5-29 we should remember the similar great birds in G:

5 * 29 (in Aa5-29) = 145 = half those 10 * 29 told about earlier (1314 - 285 = 1029 and also in 290 at Aa4-39). Does it mean that 362 arrives 15 * 29 = 435 glyphs beyond some important glyph? Or should we count 362 - 135 = 227? Or is it referring to Aa4-37 (halfway from Aa4-34 to Aa4-39):

Aa4-34	Aa4-35	Aa4-36	Aa4-37	Aa4-38	Aa4-39
285	286	287	288	289	290
Aa5-26	Aa5-27	Aa5-28	Aa5-29	Aa5-30	Aa5-31
359	360	361	362	363	364

Aa4-35 and Aa5-27 are of the same general type. Then comes twin glyphs, although of quite different kinds.

Glyph number 227 is Aa3-52:

Aa3-49	Aa3-50	Aa3-51	Aa3-52	Aa3-53	Aa3-54	Aa3-55

Two 'feathers' on top of the head is a sign. But what does it mean? It is similar to glyph number 160, Aa2-70.

Summarizing, we may conclude that the reign of moon presumably ends after 290 glyphs, but that already with glyph number 150 sun light will be growing:

290 - 150 = 140 = 10 fortnights (if each glyph means one day). In G the 'coinage' was 70 for the 'seasons'. Here it might be twice that.

We can look at the glyphs around 150 + 70 = 220 to see if there is any indication of 70 as the 'coinage':

Aa2-44	Aa2-45	Aa2-46	Aa2-47	Aa2-48
219	220	221	222	223

Yes, both Aa2-45 an Aa2-46 are split glyphs, clear signs of discontinuity.