Seth asked me, " What had frightened you ? "(Change into Indirect Speech.)
ASeth asked me what had frightened me.
BSeth said to me what had frightened me.
CSeth told me what had frightened me.
DSeth said me what had frightened me.
ASeth asked me what had frightened me.
BSeth said to me what had frightened me.
CSeth told me what had frightened me.
DSeth said me what had frightened me.