function onKill(cid, target)

    local MONSTERS = {
        ["Rotworn"] = {storage = 38290, check = 30000, needKills = 100, rewards = {2160, 1}},
        ["Dragon"] = {storage = 38291, check = 30001, needKills = 250, rewards = {2160, 25}}
    }

local name = getCreatureName(target)

    local TB = MONSTERS[name]
    local STOR = getPlayerStorageValue(cid, TB.storage) < 0 and 0 or getPlayerStorageValue(cid, TB.storage)

    if TB then
        if isMonster(target) then
            if STOR < TB.needKills then
                setPlayerStorageValue(cid, TB.storage, STOR + 1)
                doPlayerSendTextMessage(cid, 27, name .. "[" .. STOR .. "/" .. TB.needKills .. "]")
            else
                if getPlayerStorageValue(cid, TB.check) < 1 then
                    doPlayerSendTextMessage(cid, 28, name .. " task completed.")
                    doPlayerAddItem(cid, TB.rewards[1], TB.rewards[2])
                    setPlayerStorageValue(cid, TB.check, 1)
                end
            end
        end
    end

    return true
end