Ristamar said:Considering the ultra-weak duration of all Summon spells (1 round/level), I'd probably count it as an encounter with the Summoner (even though the party might not know that). Taking duration into considering this, it's unlikely that the summoned creatures will be located very far from the summoner...
Oh? Say we've a 10th level spellcaster doling the summoning. Let's say the summoned critter has a normal movement rate of 30. If the creature spends half the duration moving, the summoner can be a hundred yards away (as far as 200 yds if the creatures run), and still have 5 rounds to do damage to the characters. While out on grassy plains this means he's in sight, in towns, heavy forest, or indoors the characters probably won't get to touch him.