Related Clues:
- Enter unseen
- Arrive on the sly
- Enter through the back door, say
- Beat the security system, say
- Crash, maybe
- Enter silently, as a cat burglar
- "___ Sally Through the Alley"
- Get by the sentry
- Circumvent a sentry
- Enter without paying, maybe
- Furtively 67-Across
- Attend without paying, perhaps
- *Enter on the sly
- Enter on tiptoe, perhaps
- Crash, in a way