N'Kia "Bibi [Grandmother]" Uhura, Nyota's irrepressible grandmother, passed on into immortality shortly after Grayson's second birthday. Spock's work on New Vulcan and its aftermath delayed an important ritual within Clan Uhura requiring his and Nyota's presence.
Bibi had enjoyed her great-grandson when Spock and Uhura were married by the Uhura clan elders on Earth. Grayson started and ended each day in Bibi's experienced arms. Baby Grayson discerned the secret Uhura gift of psionic skills - Bibi, an Uhura on both sides of the family, possessed telekinetic telepathy. Grayson spoke telepathically to her in their own language everyday during his parents' honeymoon.
This trip Spock officially received his clan membership, gifted to him by Bibi and his father-in-law Benjamin Uhura, for his heroic rescue of Earth and of Nyota.
Spock also sat with the clan for the reading of Bibi's will. After the will's instructions for the transition of clan leadership and trust funds for her great-grandchildren (all boys, so far), a special bequest shocked Spock into full attentiveness.
Bibi bequeathed her family homestead, where she had raised her own children, to Spock.
Concerned that the property stay within the clan, Spock attempted to negotiate its return to Bibi's estate. The smiles of Benjamin and Edward Uhura told him he had missed something. Edward - Nyota's brother and the head of the family's law firm - explained that the homestead remained part of the family trust because Spock belonged to the clan. By clan rights of survivorship, Spock's eldest would inherit when he passed on.
After several rounds of the Uhura homemade brew that contained undisclosed amounts of cacao, the men of the clan - including Grayson - retired to Benjamin's home to discuss management of the clan's businesses. Nyota kissed Spock and Grayson and retired to bed in their new home.
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Spock had their luggage and travel packages transferred to Africa before they left the Enterprise. Coming home to Africa continued to be a simple packing experience; shorts, tops, boots with socks, two nice outfits with shoes, swimwear and underwear were all that was required, supplemented by their hiking and camping gear.
Edward had Bibi's house freshened before their arrival. Their luggage sat in the home waiting for Uhura to unpack.
In less than half a day the ranch style house operated like they lived there daily. The huge master bedroom (with an equally enormous custom made bed) sat near the kitchen with wall-to-wall, ceiling-to-floor glass doors leading to the wrap-around porch. A nursery sat off the master bedroom through an adjoining door. Because of the nursery's proximity, the master bedroom had been sound-proofed.
By their second day Uhura kids and teenagers began to visit daily, often spending the night in one of the six other bedrooms. Nyota spent afternoons with the other wives and mothers on the compound. With the heat of the day concentrated in the early afternoons, kids often napped while moms enjoyed quiet discussion and cool drinks on the porches all of the clan housing provided.
More often than not, Spock and Nyota's home became the "hang-out" house.
By week two they had weekly mikusanyiko ya [gatherings] at Nyota and Spock's place. Spock found that he enjoyed hosting such events with guests who embraced him as family. For years in San Francisco children stared at him as something alien. Now his many nephews of all ages begged to be held, hugged, picked up, played with and fed by Spock.
By week three they had a routine that included movie nights for Grayson and whichever cousins were spending the night, swimming time at her parents' pool (after the snakes and insects were skimmed out), lesson time with Uncle-Spock-the-Genius for the older children working on school or personal projects and oral tradition nights when clan elders told stories of the Uhuras. Spock listened carefully to these oral traditions as he had his own hypotheses about the Uhuras and their unusual gifts.