Script (globalevents) to spawn...

[viking]

Request:

One script to spawn one monster 15:00 and spawn again in 10 min after die.

 

[Printer]

<globalevent name="Spawn" time="15:00:00" script="spawn.lua" />

local config = {
    monsterName = "Demon",
    spawnPosition = Position(1000, 1000, 7)
}

function onTime(interval)
    local monster = Game.createMonster(config.monsterName, config.spawnPosition, false, true)
    if monster then
        Game.broadcastMessage("Boss has been spawned.", MESSAGE_STATUS_WARNING)
    end

    return true
end

<event type="death" name="onDeath" script="death.lua" />

local function onRespawn(name, position)
    local monster = Game.createMonster(name, position, false, true)
    if monster then
        position:sendMagicEffect(CONST_ME_TELEPORT)
    end
end

function onDeath(monster, corpse, killer, mostDamageKiller, unjustified, mostDamageUnjustified)
    addEvent(onRespawn, 15 * 60 * 1000, monster:getName(), monster:getPosition())
    return true
end

make sure to register the event on the monster.