D&D code task

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>

int main()
{
    int num;
    int error;
    int VariableRace;
    int WizardLevel;
    int friendship;
    printf("Please only use the numbers 1,2 and 3 to select different options");
    printf("Which race are you?\n1.Goblin\n2.Elf\n3.Wizard\n");
    scanf("%d",&num);
    error=(isdigit(num));
    if (error==0)
    {
                 switch(num)
                 {
                            case 1:
                                 printf("\tHave you:\n\t1.Eaten\n\t2.Not Eaten\n");
                                 scanf("%d",&VariableRace);
                                 if(VariableRace==2)
                                 {
                                                    printf("Go eat you horrible goblin");
                                 break;
                            case 2:
                                  printf("\tDo you have the power of\n\t1.Sight\n\t2.Sound\n");
                                  scanf("%d",&VariableRace);
                                  break;
                            case 3:
                                  printf("\tWhat level of wizarding are you at:\n\t1.High\n\t2.Medium\n\t3.Low\n");
                                  scanf("%d",&WizardLevel);
                                  switch(WizardLevel)
                                  {
                                                      case 1:
                                                      printf("\t\tYou have insight into the wizarding world but what element have\n\t\tyou mastered?\n\t\t1.Fire\n\t\t2.Wind\n\t\t3.Water\n");
                                                      scanf("%d",&VariableRace);
                                                      break;
                                                      case 2:
                                                      printf("\t\tYou may have passed the basics but can you:\n\t\t1.Fly\n\t\t2.Turn Invisible\n");
                                                      scanf("%d",&VariableRace);
                                                      break;
                                                      case 3:
                                                      printf("\t\tGo back to wizarding school");
                                                      break;
                                  }
                 }
    if (VariableRace==1)
    {
                         printf("You are welcome into my Dungeon filled with Dragons however are you \n1.friend?\n2.foe?");
                         scanf("%d",&friendship);
                         if (friendship==1)
                         {
                                           print("Please come in and make yourself at home");
                         }
                         else
                         {
                             printf("YOU DIED");
                         }
    }
    else
    {
        printf("You are not welcome in my abode");
    }
    system("pause");
    return 0;
}