Don and List,
 
While still working on the "Bellevue" scene in ADA, there was a sentence that  called my attention in particular.

There is 
Dorothy Vinelander  who
"thought fit to interrupt her narrative (which had to do with the eruption of a dream volcano) " 
 
This simple sentence brings together "interrupts/erupts" and shows the words in a special way if one hears the word  "inter" not only as "coming in between" but also as "inter/interred/ interring" which means to cover with earth, to deposit a corpse, to bury.
This links with her husband´s "digs" (  in "what treasures he dug up"...).  There is also a reference mentioning "gravemen" in "laymen and lemans...grave men/gravemen".
 
Is there a special secret  connected with Dorothy that needs to be brought to light? ( by contrasting "inter" and "erupt").
 
Blackmailing Dorothy may know a secret  about a "buried lover/leman"?  There is  a mildly toxic plant named " Scarlet Pimpernel" ( the Stabia/ Pompeianella/Pimpernella link, plus the Sorcière´s owner, Ms. Scarlet ) 
 
( Plant name: Scarlet Pimpernel  Toxic portions: Foliage,flowers and fruit.
Toxicity: Curcubitacins in Scarlet pimpernel may cause digestive and kidney inflammation. Caged birds and sheep are reported to have died from eating Anagallis arvensis)
 
The  paragraph that informs us about Dorothy and her marriage reads: 
 "Dorothy Vinelander retired to a subarctic monastery town (Ilemna, now Novostabia) where eventually she married a Mr Brod or Bred, tender and passionate, dark and handsome, who traveled in eucharistials and other sacramental objects throughout the Severnïya Territorii and who subsequently was to direct, and still may be directing half a century later, archeological reconstructions at Goreloe (the ‘Lyaskan Herculanum’); what treasures he dug up in matrimony is another question". 
Brian
Boyd ( Nabokov´s Ada, the place of consciousness, page 31)  explained that Nabokov fused in "Ilemna/Novostabia" both  Lake Il´men and Iliamna, a local volcano.
 
Other associations present in VN´s text  bring up Freud again by a curious chain of associations:  
 "Ilemna" and Leman, Laymen and Lemans, Sig Leymanski as Dr.Froit , or Dr. Signy Mondieu Mondieu. 
 
 
excerpts from "ADA"

1. " as the Bear-Foot, B,E,A,R, my love, not my foot or yours, or the Stabian flower girl’s — an allusion, which your father, who, according to Blanche, is also mine, would understand (...) ‘Good for you, Pompeianella (whom you saw scattering her flowers in one of Uncle Dan’s picture books, but whom I admired last summer in a Naples museum).
 
2. According to the Sunday supplement of a newspaper that had just begun to feature on its funnies page the now long defunct Goodnight Kids, Nicky and Pimpernella (sweet siblings who shared a narrow bed)...
 
3... our frolicsome Pimpernel and Nicolette found in the same attic a reel box containing what turned out to be (according to Kim, the kitchen boy, as will be understood later) a tremendous stretch of microfilm... 
 
4. ... Theresa maddened with her messages a scientist on our easily

maddened planet; his anagram-looking name, Sig Leymanksi, had been partly

derived by Van from that of Aqua’s last doctor. When Leymanski’s obsession...

 

5. The details of the L disaster (and I do not mean Elevated) in the beau milieu of last century, which had the singular effect of both causing and cursing the notion of ‘Terra,’ are too well-known historically, and too obscene spiritually, to be treated at length in a book addressed to young laymen and lemans — and not to grave men or gravemen.

 

6.... and then staying for a while in autumn at a hotel on a mountain slope above Leman Lake (where Karamzin and Count Tolstoy had roamed) (...)  Both girls had scarlet fever in Cannes...

 

7. We shall always remember Little Lemantry near Rantchester or the Pseudotherm in the lovely cul-de-sac south of the viaduct 

8. Mount Russet, the forested hill behind the town, lived up to its name and autumnal reputation, with a warm glow of curly chestnut trees; and on the opposite shore of Leman, Leman meaning Lover, loomed the crest of Sex Noir, Black Rock.

 

9A Dr Froid, one of the administerial centaurs, who may have been an émigré brother with a passport-changed name of the Dr Froit of Signy-Mondieu-Mondieu in the Ardennes or, more likely, the same man, because they both came from Vienne, Isère (...) The astorium in St Taurus, or whatever it was called (who cares — one forgets little things very fast, when afloat in infinite non-thingness) was, perhaps, more modem, with a more refined desertic view, than the Mondefroid bleakhouse horsepittle, but in both places a demented patient could outwit in one snap an imbecile pedant.

 
 
10. he bought a villa for himself et ma cousine, and had supper with the former owner, a banker’s widow, amiable Mme Scarlet and her blond, pimply but pretty, daughter Eveline.
 
11. Van kissed her leaf-cold hand and, letting the Bellevue worry about his car, letting all Swans worry about his effects and Mme Scarlet worry about Eveline’s skin trouble...