Read it through once

But the gloom of Lydia’s prospect was shortly cleared away; for she received an invitation from Mrs. Forster, the wife of the colonel of the regiment, to accompany her to Brighton. This invaluable friend was a very young woman, and very lately married. A resemblance in good-humour and good spirits had recommended her and Lydia to each other, and out of their _three_ months’ acquaintance they had been intimate _two_.