Catherine Linton (Mrs. Linton) - Present throughout chapter, ill and delirious
Physical details: "thick entangled locks," "wasted face," haggard appearance that renders Edgar speechless, described as formerly "a stout, hearty lass"
Personality: Dramatic, manipulative, prone to fits of passion, believes everyone should love her
Key actions: Locks herself in room for three days, refuses food, becomes delirious, tears pillow apart, opens window despite cold, speaks to imaginary Heathcliff
Relationships: Wife to Edgar Linton, former childhood companion of Heathcliff
Mental state: Delirious, confusing past and present, believes she's dying
Edgar Linton - Present in latter part of chapter
Physical details: None specified
Personality: Withdrawn, studious, devastated by Catherine's condition
Key actions: Shuts himself among books, enters Catherine's room, holds her during delirium, dismisses pursuit of Isabella
Relationships: Catherine's husband, Isabella's brother
Current state: Absorbed in grief over Catherine, showing no interest in Isabella's fate
Isabella Linton (Miss Linton) - Mentioned throughout, discovered missing
Physical details: None in this chapter
Key actions: Mopes in park and garden, elopes with Heathcliff during the night
Relationships: Edgar's sister, has eloped with Heathcliff
Status change: From resident at Thrushcross Grange to runaway
Ellen "Nelly" Dean - Narrator, present throughout
Role: Housekeeper, sole "sensible soul" in the house according to herself
Key actions: Tends to Catherine, fetches doctor, discovers Isabella's dog, learns of elopement
Personality: Practical, somewhat unsympathetic to dramatics
Heathcliff - Not present but central to events
Actions: Elopes with Isabella, appears in Catherine's delirious visions
Relationships: Has eloped with Isabella, object of Catherine's obsessive thoughts
Mr. Kenneth - Doctor who treats Catherine
Physical details: "plain rough man"
Role: Village doctor, knows local gossip
Key actions: Examines Catherine, warns of potential permanent mental damage
Minor characters mentioned:
Mary - Maid who brings news of the elopement
Fanny - Isabella's springer dog, found nearly strangled
Joseph - Mentioned in Catherine's delirium as keeping late hours at Wuthering Heights
Blacksmith and his daughter - Witnessed Heathcliff and Isabella's passage
Monday evening - Catherine locks herself in her room after quarreling with Edgar Tuesday-Wednesday - Catherine remains barricaded, Edgar stays among his books Thursday night/Friday morning - Main events of chapter occur
Catherine emerges, requests food
Nelly brings tea and toast
Catherine becomes increasingly delirious, tears pillow, demands window be opened
Edgar enters room around midnight, shocked by Catherine's condition
Nelly leaves to fetch doctor
Nelly discovers Isabella's dog nearly strangled in garden
Nelly fetches Mr. Kenneth (doctor)
Upon return, Isabella discovered missing
Maid Mary reports seeing Heathcliff and Isabella at blacksmith's shop "not very long after midnight"
Physical locations:
Events occur at Thrushcross Grange
Catherine's room has a mirror "hanging against the opposite wall"
Room has a window facing toward Wuthering Heights (though Catherine imagines seeing lights there in darkness)
Garden has "a bridle hook driven into the wall"
Wuthering Heights has "oak-panelled bed," firs by the lattice
Penistone Crags mentioned as landmark
Gimmerton Kirk (graveyard) referenced
Object details:
Pillow filled with various feathers: turkey's, wild duck's, pigeon's, moor-cock's, lapwing's
Mirror covered with shawl
Isabella's dog Fanny found suspended by handkerchief
Blacksmith paid with "a sovereign"
Weather/setting:
"Middle of winter," strong north-east wind
"Frosty air that cut about her shoulders as keen as a knife"
No moon, "misty darkness"
Catherine's age references:
She recalls being "twelve years old" when separated from Heathcliff after her father's death
States "the whole last seven years of my life grew a blank" - suggesting current age around 19
Her "former illness" referenced by doctor
Time spans:
Catherine locked in room for "three days" (Monday evening to Thursday night)
Isabella and Heathcliff's elopement occurred "not very long after midnight" on Thursday/Friday
Isabella Linton:
Previous chapter showed her as innocent victim of Heathcliff's attention
Now revealed to have been secretly meeting with Heathcliff for "above two hours" in plantation
Has willingly eloped with him, contradicting earlier portrayal of fear/reluctance
New threads introduced:
Isabella's elopement creates new crisis
Catherine's serious mental/physical breakdown may be permanent
Edgar's complete rejection of Isabella
Existing threads advanced:
Catherine-Edgar-Heathcliff triangle reaches crisis point
Catherine's mental instability escalates to dangerous levels
Threads complicated:
Doctor warns Catherine may suffer "permanent alienation of intellect"
Edgar refuses to pursue Isabella, effectively disowning her
Catherine's delirious statements:
"I'll not lie there by myself: they may bury me twelve feet deep, and throw the church down over me, but I won't rest till you are with me"
Insists on burial "in the open air, with a head-stone" rather than "under the chapel-roof"
Claims her soul will be "on that hill-top"
Ominous medical prognosis:
Doctor suggests "permanent alienation of intellect" more likely than death
References Catherine's "second attack" implying previous similar episode
Mysterious elements:
Sound of "horses' feet galloping at some distance" at 2 AM
Isabella's dog found nearly strangled (deliberate cruelty or accident?)
Catherine's vivid hallucinations of seeing lights at Wuthering Heights in complete darkness
The chapter establishes Catherine's potentially fatal illness as psychosomatic, rooted in her inability to reconcile her marriage to Edgar with her spiritual connection to Heathcliff, while simultaneously revealing Isabella's secret alliance with Heathcliff culminating in their elopement.