The other man was darting after him on tiptoe.
He had one arm drawn back.
“Great Scott!” thought Patsy, “he means murder!”
He gave up trying to conceal his actions then.
Running forward as fast as possible, he shouted:
“Look out!”
Snell turned quickly.
The other man was close to him, and let his hand fall.
With a great leap Patsy was up to him just in time to catch his arm.