NET
15 I continued up the valley during the night, inspecting the wall. Then I turned back and came to the Valley Gate, and so returned.
Darby
15 And I went up in the night through the valley, and viewed the wall, and turned back, and entered by the valley-gate and returned.
KJV
15 Then went I up in the night by the brook, and viewed the wall, and turned back, and entered by the gate of the valley, and [so] returned.