Wiktionary
mischiefs
n. (plural of mischief English)
Usage examples of "mischiefs".
Howbeit I had no time then to rest my selfe, for the Mother of the boy, weeping and lamenting for his death, attired in mourning vesture, tare her haire and beat her breast, and came presently into the stable, saying, Is it reason that this carelesse beast should do nothing all day but hold his head in the manger, filling and belling his guts with meat without compassion of my great miserie, or remembrance of the pittiful death of his slaine Master : and contemning my age and infirmity, thinketh that I am unable to revenge his mischiefs, moreover he would perswade me, that he were not culpable.
Those two little mischiefs are trying to figure out how to get around the Adult Conspiracy.