Demon leaving immediately after summoning

Should this happen? --------------------------------------------- <558/684h 455/776m 469/469mv outdoor/wilderness/standing/3AM/11993xp> chal A monstrous demon arrives, ready to expel its rage! A croaking challegha demon is kept at bay by your a thaumaturgic circle. <558/684h 355/776m 469/469mv outdoor/wilderness/standing/3 AM/11993xp> dbindde The demon returns to the Abyss. <558/684h 355/776m 469/469mv outdoor/wilderness/standing/3 AM/11993xp> l l A narrow path The path continues to the south and to the north it joins up with another path that runs east and west. The mountains continue to dominate the landscape to the south and west and a cold wind blows from the north. To the east, the mountains recede, leaving a vast and open plain with a city in the middle of it. The soil is hard packed and has some small rocks and pebbles scattered around it. [Exits: north south] (Magical) (Glowing) A thaumaturgic circle is inscribed upon the ground. (Magical) (Glowing) A celestial circle is inscribed upon the ground. Darting through the air, a little mephit puffs out a trail of smoke. A jaette spearman watches over the gates, prepared for any attack. <558/684h 355/776m 469/469mv outdoor/wilderness/standing/3 AM/11993xp> -------------------------------------