add script

[myserver]

Spoiler

-    script    mvp-ss    -1,{
    OnInit:
        set .map$,"guild_vs1-2";
    end;
    
    OnMinute34:
        announce "Attention to all players online",0;
        sleep 1000;
        announce "MVP summoner is start please warp to center of prontera",0;
        sleep 1000;            
        mapannounce .map$,"MVP summoner start in 5s",0;
        sleep 1000;
        mapannounce .map$,"5s",0;
        sleep 1000;
        mapannounce .map$,"4s",0;
        sleep 1000;
        mapannounce .map$,"3s",0;
        sleep 1000;
        mapannounce .map$,"2s",0;
        sleep 1000;
        mapannounce .map$,"1s",0;
        sleep 1000;        
        initnpctimer; // Start the timer
        monster .map$,0,0,"Angeling",1096,1,"mvp-ss::OnWave";
        monster .map$,0,0,"Archangeling",1388,1,"mvp-ss::OnWave";
        monster .map$,0,0,"Ghostring",1582,1,"mvp-ss::OnWave";
    end;
    
    OnWave:
        if(!mobcount(.map$,"mvp-ss::OnWave")){
            sleep 5000;
            mapannounce .map$,"First wave clear",0;
            sleep 2000;            
            mapannounce .map$,"Second wave start in 5s",0;
            sleep 1000;
            mapannounce .map$,"5s",0;
            sleep 1000;
            mapannounce .map$,"4s",0;
            sleep 1000;
            mapannounce .map$,"3s",0;
            sleep 1000;
            mapannounce .map$,"2s",0;
            sleep 1000;
            mapannounce .map$,"1s",0;
            sleep 1000;    
            monster .map$,0,0,"Maya Purple",1289,1,"mvp-ss::OnWaveFinal";
            monster .map$,0,0,"Mutant Dragon",1262,1,"mvp-ss::OnWaveFinal";
            monster .map$,0,0,"Tirfing",1204,"mvp-ss::OnWaveFinal";
    end;            
    OnWaveFinal:
            if(!mobcount(.map$,"mvp-ss::OnWaveFinal")){
            sleep 5000;
            mapannounce .map$,"GG",0;
            sleep 2000;
            mapannounce .map$,"Stage is Clear",0;
            sleep 2000;
            mapannounce .map$,"all players warp to Prontera",0;
            sleep 2000;
            mapwarp .map$,"prontera",180,180;
            }
        end;
    }
}

how can add the npc for this script . then every 60mins the npc will be show at prontera then after 5mins the npc is hide

[Emistry]

try

https://pastebin.com/L9x6bXQn