NET
42 The girl got up at once and began to walk around (she was twelve years old). They were completely astonished at this.
Darby
42 And immediately the damsel arose and walked, for she was twelve years old. And they were astonished with great astonishment.
KJV
42 And straightway the damsel arose, and walked; for she was [of the age] of twelve years. And they were astonished with a great astonishment.