Gravity Lock
From Vanishing Point Wiki
The skywriting clue is:
Click to reveal Spoiler
SPOILER
The number order is: 7451236
The answer is: SECRECY
SPOILER
SECRECY works for me. This is the pattern I used:
6Lx3, 7Lx3, 2Lx3, 4Lx2, 4Rx2, 3Rx2, 4Rx3, 7L, 5R, 7L, 5R, 7L, 3R, 2Rx6, 7L, 4R, 6Rx2, 8
To next puzzle: Domino.
