35. Then Ciaran set up the first post in Cluain, and Diarmait mac
Cerrbheil along with him. Said Ciaran to Diarmait when they were
planting the post, "Warrior, suffer my hand to be over thy hand, and
thou shalt be over the men of Ireland in high-kingship." "I permit
it," said Diarmait, "only give me a token thereof." "I will," said
Ciaran; "though thou art solitary to-day, thou shalt be King of
Ireland this time to-morrow." That was verified; for Tuathal Moel-garb
King of Ireland was slain that night, and Diarmait took the kingship
of Ireland on the morrow, and he bestowed a hundred churches on
Ciaran. Wherefore to prove that, it was said--
I'll speak both choice and truly,
although thou now art lonely,
Thou shalt rule Ireland duly,
after one's day's space only.
The chosen Tuathal's slaughter,
a crying without glory.
Thence is it said thereafter,
"That deed was of Mael-Moire."
Without a court or slaughter,
great Diarmait Uisnech lifted;
A hundred fanes thereafter,
to God and Ciaran gifted.
Then was the post made fast; and Ciaran said in fixing it, "Be this,"
said he, "in the eye of Tren." Tren was a youth who was in the
fortress of Cluain Ichtar, and who had adventured arrogance against
him. Forthwith his one eye burst in his head, at the word of Ciaran.