Note 580 — COMUS.
Reading edition
579. till I had found. The language is extremely condensed here, the meaning being, ‘I began my flight, and continued to run till I had found you’; the pluperfect tense is used because the speaker is looking back upon his meeting with the brothers after completing a long narration of the circumstances that led up to it. If, however, ‘had found’ be regarded as a subjunctive, the meaning is, ‘I began my flight, and determined to continue it until I had found (i.e. should have found) you.’ Comp. Abbott § 361.