Adaptei esse script para o TFS 1.0.

function onThink(interval, lastExecution, thinkInterval)
local maxDistance = 10
for _, cid in ipairs(getOnlinePlayers()) do
local sums = getCreatureSummons(cid)
if #sums > 0 then
for i = 1, #sums do
if getCreaturePosition(cid).z ~= getCreaturePosition(sums[i]).z or
getDistanceBetween(getCreaturePosition(cid), getCreaturePosition(sums[i])) > maxDistance then
doTeleportThing(sums[i], getCreaturePosition(cid))
end
end
end
end
return true
end

globalevents.xml:

<globalevent name="teleport" interval="1" script="teleport.lua"/>