Trecena 10 runs from 1 Tecpatl through 13 Itzcuintli, dog, its span carrying flint, rain, flower, crocodile, wind, house, lizard, serpent, death, deer and rabbit before closing on the sign that opens Trecena 14 next in the round. As the exact midpoint of the twenty trecena sequence, this week divides the tonalpohualli into two equal halves, and the tonalpouhque's tonalamatl tables mark it as a natural pivot in any full reading of the calendar's year, the point at which a reader working through the whole 260 day count from Cipactli onward reached the halfway mark.
The dog sign that closes this trecena carries its own separate reading as the guide of the dead across the river to Mictlan in the wider mythology, a fitting closing note for a week already patronised jointly by the death lord and the sun, so that this trecena's thirteen days move thematically from the sacrificial flint of its opening through war and prosperity to the dog's psychopomp role at its close. No other trecena in the count carries quite this concentration of death and warfare imagery across its full span, a pattern the tonalpouhque would have read as making Trecena 10 among the most demanding weeks to navigate successfully.