Lua Lua script problem!

[RoHaN-OTs]

My script (0.4)

function onPrepareDeath(cid, dl)
	if isPlayer(cid) and isInArea(getCreaturePosition(cid), {x=876,y=1010,z=9},{x=886,y=1020,z=9}) then
	    doCreatureAddHealth(cid, getCreatureMaxHealth(cid) - getCreatureHealth(cid))
	    doCreatureAddMana(cid, getCreatureMaxMana(cid) - getCreatureMana(cid))
		doTeleportThing(cid, {x=886,y=1007,z=8})
		doSendMagicEffect({x=886,y=1007,z=8}, 10)
		return false
    end
	return true
end

I thought returning false in an onPrepareDeath event will prevent the user from dying.
Some fact's about this:
- I DO see the person being teleported, but after a second or so he disappears and dies
- The corpse appears if I don't handle the onDeath event with a false-return

Any idea why it doesn't work?

Thanks!

 

[Cykotitan]

doCreatureAddHealth(cid, getCreatureMaxHealth(cid), 65535, 256, true)