Dictionary / Vocabulary / この先
このさき
beyond this point; ahead; from now on; after this
Also written 此の先
この先ネタバレ♪大丈夫な方はドラッグ（反転）して読んでね♪
Spoilers ahead! If you don't mind that then read after highlighting (colour inverting).
この先通行禁止。
No passage this way.
この先危険物あり。
Danger ahead.