"That I shall," agreed the warrior willingly. "I do not see that there is cause for any doubt. Grella lied to you about her relationship with Dacán and now we have found this! Is any more proof needed?"
Fidelma did not reply as she repacked the other materials in the satchel but bundled up the skirt into her marsupium. She walked back to the bed to make a final check. As she did so the toe of her shoe hit something on the floor; an obstruction which did not give but sent a sharp pain into her foot.
She bent immediately to the floor and peered at it. There was a loose flagstone on the floor. It was this that she had stubbed her toe on. It stood slightly proud from the other floor stones and rocked a little as she touched it.
"Help me with this, Cass," she instructed.
The warrior took out his large knife and inserted it, easing the stone up. There was a cavity underneath. Fidelma held her candle high and peered in. She pulled forth a bundle of vellum.
Fidelma unrolled the vellum and peered at the careful calligraphy.
"The writings of Dacán," she whispered. "Grella was hiding them all along."
"Then no other proof is needed. She must have killed Dacán!" remarked Cass with satisfaction.
Fidelma was too busy examining the contents of the writing to comment.
"It is a letter to his brother, the Abbot Noe." Then she corrected herself. "No, it is only a draft of a letter. He talks about searching for the heirs of the native kings of Osraige. But he has spilt ink over it and this is why the sheet is discarded. Listen to this, Cass… 'The son of Ulan, according to the record, has just reached the age of choice. He is old enough to be considered for the kingship. I have discovered my quarry to be hiding in the monastery of Finán at Sceilig Mhichil under the protection of his cousin. Tomorrow, I shall depart from here and go there.' Look when this is dated!" She thrust the vellum at Cass and indicated the date. "This must have been written a few hours before he was killed."
"What quarry?" demanded Cass. "It seems an odd choice of words, as if Dacán was a hunter?"
"Do you know this monastery at Sceilig Mhichil?"
"I have never been there but I know it to be a small settlement on a rock-like island in the sea out to the west."
"Dacán never set out to Sceilig Mhichil," she murmured. "He was dead a few hours after writing this."
Fidelma did not replace the vellum in its hiding place but put it in her marsupium along with the skirt. She then bent to put the flagstone back in place and stood up.
"Sister Grella will have much to explain," she observed.
She gazed round the chamber for a moment then blew out the candle and cautiously opened the door. There was no one outside and she moved quickly out, motioning Cass to follow. As she shut the door, she turned sharply on her heel and hurried along the corridor.
"Where now?" demanded Cass, a little aggrieved that he had to ask.
"To find Sister Grella," she replied curtly.
"Where should we start?"
They started by asking Brother Rumann the steward, but when a full hour had produced no sign of the missing librarian, Cass suggested: "Perhaps she has left the abbey?"
"Is there no aistreoir in this abbey?" snapped Fidelma.
"The doorkeeper is Brother Conghus," Cass replied automatically before realizing that she had asked the question rhetorically. He succeeded in receiving a crushing glance of scorn from the fiery green eyes of Fidelma.
"I am aware of that," she said tightly. "It seems, however, that people can pass out of this abbey and vanish as they will. Firstly, Eisten vanished; then the two boys from Rae na Serine, and now the librarian is nowhere to be found."
At least Brother Conghus had not vanished. He was in his small officium next to the gates of the abbey making notations on wax tablets. He glanced up in surprise as Fidelma entered without ceremony.
"Sister? How can I help you?" he asked, slowly rising to his feet.
"I am seeking Sister Grella," replied Fidelma.
The doorkeeper raised a shoulder and let it fall in a negative fashion.
"Then the library… ?" he began, but Fidelma cut him short.
"If she had been there, we would not be here. Neither was she in her chamber. Has she left the abbey?"
Brother Conghus immediately shook his head.
"It is my task to record the comings and goings of people to and from the abbey," he said. "So far as my records show, Sister Grella has not left."
"Do you keep a record every day?"
"Of course."
"But this is not the only entrance to the abbey," she pointed out.
"It is the main entrance," replied Conghus. "The rule is that everyone leaving or entering the abbey must report their movements so that we may know who is within the abbey walls."
"But if she had left by the side entrance… ?"
"She would have informed me. It is the rule," Conghus repeated.
"Earlier this evening, I left the abbey by the rear gate whose path leads to the shore. Then I returned and brought the captain of the Laigin warship with me. He stayed in the abbey a while before departing again to his ship. Do your records speak of this?"
Conghus flushed.
"I was not informed. The onus is on people to obey the rule and you should have informed me."
Fidelma sighed deeply.
"This means that your records are not entirely reliable. They are only reliable in so far as people obey your rules."
"If Sister Grella had left the abbey, she would know the rule," replied Conghus stubbornly.
"Only if she wanted it to be known that she had left," intervened Cass, finding something he could contribute to the conversation.
Conghus replied with a snort of annoyance.
"What do you know of Sister Grella?" Fidelma suddenly asked.
Conghus was bewildered by her question.
"Know of her? She is the librarian of the abbey and has been so ever since I have known her."
"And you know nothing else?"
"I know that she came here from the abbey of Cealla. I know that she is well-qualified in her profession. What else should I know?"
"Was she ever married?" Fidelma asked.
"She has never mentioned anything of a marriage in her past."
"How well did she know Sister Eisten?"
The question came as a sudden intuitive shot but it did not seem to register with Brother Conghus.
"She knew her, that is all I can say. Sister Eisten did some studying in the library earlier in the year and so I presume that the librarian would know her."
"Then it was not a close liaison? They were not particular friends?"
"No more than any other member of the abbey whom Sister Grella knew."
"About a week ago, Sister Grella visited Salbach's fortress at Cuan Dóir. Do you know why?"
"Did she? A week ago?" Conghus looked bemused. "Then we should have a record of that."
He rose and turned to a shelf of wax tablets and started to check their contents, shaking his head and clicking his tongue.
"You do not know offhand why she would go to Salbach's fortress?" demanded Fidelma, while the doorkeeper diligently searched for the right tablet.
"None, unless Salbach was presenting a gift to the library. Sometimes, some chieftains find they are possessed of the ancient rods of the poets. Such old Ogham books are rare now, even here in Muman. The abbey offers rewards for the gathering of them. It could be that Salbach found some and decided to present them to our library. But if Grella did go there for that, or any other purpose, she would have informed me that she was leaving the abbey. There is no record of her doing so." He turned aside from his tablets to Fidelma. "I cannot find any reference to Sister Grella having left to go to Cuan Dóir. She did, however, leave here to go to Rae na Serine a week ago."