Spell lleps_spell
  with name "lleps",
       purpose "reverse effect of memorised spell",
       magic
       [;   if (second==0 || second notin memory)
                "The spell backfires, painfully.";
            if (second.number==100)
                "You know that spell too well for your mind to be able
                 to accept the change.";
            if (second has reversed) give second ~reversed;
            else give second reversed;
            if (second==lleps_spell)
            {    memory.forget_spell(second);
                "Your mind wrenches as the two lleps spells
                 cancel each other out, leaving only a sensation
                 quite like a hangover.";
            }
            print_ret "Your mind wrenches as ", (the) second,
                      " reverses itself.";
       ],
       unmagic
       [;   return self.magic();         !  The reverse of "lleps" is "lleps"
       ];

Spell mortin_spell
  with name "mortin",
       purpose "cause immediate death of caster",
       magic
       [;   deadflag = true;
            "You really can't fault Helistar on this one.  Death is
             absolutely immediate, like a sudden blackout curtain...";
       ],
       unmagic
       [;   prepared_flag = true;
            "Nothing quite happens... and yet you feel enormously more
             confident as you go about this dangerous world.";
       ];