Sec.  105.17  Conspiracy in the first degree.
    A  person  is  guilty of conspiracy in the first degree when,
with intent  that  conduct  constituting  a  class  A  felony  be
performed,  he, being over eighteen years of age, agrees with one
or more persons under sixteen years of age to engage in or  cause
the performance of such conduct.
    Conspiracy in the first degree is a class A-I felony.