Playing through the session tonight the players brought up an interesting point I had not considered in depth.
They were facing off against a magic user who had summoned an undead owlbear via the summon undead spell.
They slew the caster but the owlbear remained, quickly “rule of cooling” this it was declared the owlbear skeleton collapsed, its creator destroyed.
But it begs the question..... what happens to a spellcasters spells that do not require concentration after he is killed?
Does a wall of fire go out? An entangle spell vanish? A summoned creature dissipate?
Or does the spell remain in effect up to its duration?