Taraza spoke, translating from the material that scrolled past her eyes: "You dig too much in your Other Memories. That drains away energies better conserved."

The Mother Superior's blue-in-blue eyes sent a piercing stare upward at Odrade. "You sometimes go right to the edge of fleshly tolerance. That can lead to your premature death."

"I am careful with the spice, Mother."

"And well you should be! A body can take only so much melange, only so much prowling in its past!"

"Have you found my flaw?" Odrade asked.

"Gammu!" One word but an entire harangue.

Odrade knew. The unavoidable trauma of those lost years on Gammu. They were a distraction that had to be rooted out and made rationally acceptable.

"But I am sent to Rakis," Odrade said.

"And see that you remember the aphorisms of moderation. Remember who you are!"

Once more, Taraza bent to her display.

I am Odrade, Odrade thought.

In the Bene Gesserit schools where first names tended to slip away, roll call was by last name. Friends and acquaintances picked up the habit of using the roll-call name. They learned early that sharing secret or private names was an ancient device for ensnaring a person in affections.

Taraza, three classes ahead of Odrade, had been assigned to "bring the younger girl along," a deliberate association by watchful teachers.

"Bringing along" meant a certain amount of lording it over the younger but also incorporated essentials better taught by someone closer to peer relationship. Taraza, with access to the private records of her trainee, started calling the younger girl "Dar." Odrade responded by calling Taraza "Tar." The two names acquired a certain glue - Dar and Tar. Even after Reverend Mothers overheard and reprimanded them, they occasionally lapsed into error if only for the amusement.

Odrade, looking down at Taraza now, said: "Dar and Tar."

A smile twitched the edges of Taraza's mouth.

"What is it in my records that you don't already know several times over?" Odrade asked.

Taraza sat back and waited for the chairdog to adjust itself to the new position. She rested her clasped hands on the tabletop and looked up at the younger woman.

Not much younger, really, Taraza thought.

Since school, though, Taraza had thought of Odrade as completely removed into a younger age group, creating a gap no passage of years could close.

"Care at the beginning, Dar," Taraza said.

"This project is well past its beginning," Odrade said.

"But your part in it starts now. And we are launching ourselves into such a beginning as has never before been attempted."

"Am I now to learn the entire design for this ghola?"

"No."

That was it. All the evidence of high-level dispute and the "need to know" cast away with a single word. But Odrade understood. There was an organizational rubric laid down by the original Bene Gesserit Chapter House, which had endured with only minor changes for millennia. Bene Gesserit divisions were cut by hard vertical and horizontal barriers, divided into isolated groups that converged to a single command only here at the top. Duties (for which read "assigned roles") were conducted within separated cells. Active participants within a cell did not know their contemporaries within other parallel cells.

But I know that the Reverend Mother Lucilla is in a parallel cell, Odrade thought. It's the logical answer.

She recognized the necessity. It was an ancient design copied from secret revolutionary societies. The Bene Gesserit had always seen themselves as permanent revolutionaries. It was a revolution that had been dampened only in the time of the Tyrant, Leto II.

Dampened, but not diverted or stopped, Odrade reminded herself.

"In what you're about to do," Taraza said, "tell me if you sense any immediate threat to the Sisterhood."

It was one of Taraza's peculiar demands, which Odrade had learned to answer out of wordless instinct, which then could be formed into words. Quickly, she said: "If we fail to act, that is worse."

"We reasoned that there would be danger," Taraza said. She spoke in a dry, remote voice. Taraza did not like calling up this talent in Odrade. The younger woman possessed a prescient instinct for detecting threats to the Sisterhood. It came from the wild influence in her genetic line, of course - the Atreides with their dangerous talents. There was a special mark on Odrade's breeding file: "Careful examination of all offspring." Two of those offspring had been quietly put to death.

I should not have awakened Odrade's talent now, not even for a moment, Taraza thought. But sometimes temptation was very great.

Taraza sealed the projector into her tabletop and looked at the blank surface while speaking. "Even if you find a perfect sire, you are not to breed without our permission while you are away from us."

"The mistake of my natural mother," Odrade said.

"The mistake of your natural mother was to be recognized while she was breeding!"

Odrade had heard this before. There was that thing about the Atreides line that required the most careful monitoring by the breeding mistresses. The wild talent, of course. She knew about the wild talent, that genetic force which had produced the Kwisatz Haderach and the Tyrant. What did the breeding mistresses seek now, though? Was their approach mostly negative? No more dangerous births! She had never seen any of her babies after they were born, not necessarily a curious thing for the Sisterhood. And she never saw any of the records in her own genetic file. Here, too, the Sisterhood operated with careful separation of powers.

And those earlier prohibitions on my Other Memories!

She had found the blank spaces in her memories and opened them. It was probable that only Taraza and perhaps two other councillors (Bellonda, most likely, and one other older Reverend Mother) shared the more sensitive access to such breeding information.

Had Taraza and the other really sworn to die before revealing privileged information to an outsider? There was, after all, a precise ritual of succession should a key Reverend Mother die while away from her Sisters and with no chance to pass along her encapsulated lives. The ritual had been called into play many times during the reign of the Tyrant. A terrible period! Knowing that the revolutionary cells of the Sisterhood were transparent to him! Monster! She knew that her sisters had never deluded themselves that Leto II refrained from destroying the Bene Gesserit out of some deep-seated loyalty to his grandmother, the Lady Jessica.

Are you there, Jessica?

Odrade felt the stirring far within. The failure of one Reverend Mother: "She allowed herself to fall in love!" Such a small thing but how great the consequences. Thirty-five hundred years of tyranny!

The Golden Path. Infinite? What of the lost megatrillions gone into the Scattering? What threat was posed by those Lost Ones returning now?

As though she read Odrade's mind, which sometimes she appeared to do, Taraza said: "The Scattered ones are out there... just waiting to pounce."

Odrade had heard the arguments: Danger on the one hand and on the other, something magnetically attractive. So many magnificent unknowns. The Sisterhood with its talents honed by melange over the millennia - what might they not do with such untapped resources of humanity? Think of the uncounted genes out there! Think of the potential talents floating free in universes where they might be lost forever!

"It's the not knowing that conjures up the greatest terrors," Odrade said.

"And the greatest ambitions," Taraza said.

"Then do I go to Rakis?"

"In due course. I find you adequate to the task."

"Or you would not have assigned me."

It was an old exchange between them, going right back to their school days. Taraza realized, though, that she had not entered it consciously. Too many memories tangled the two of them: Dar and Tar. Have to watch that!