Puis

Coordinating conjunction

 Glenarvan,  précédant

Verb

  sa

Determiner

  femme

👩

Noun

  et

Coordinating conjunction

  la

Pronoun

  soutenant

Verb

,  commença

Verb

  à

Adposition

  descendre

Verb

  à reculons

.

Then Glenarvan, preceding his wife and supporting her, began to descend backwards.

Then Glenarvan, preceding his wife and supporting her, began to descend backwards.