根城
1
stronghold;citadel
泥棒は、間違いなくここにいるはずよ。きっと、どこかに根城があるから、そこを見つけさえすればいいの。
The thief has to be in here. I'm sure somewhere around is his stronghold so if we can just find that we've got him.
2
base (of operations);headquarters