So the party is the area of C6/C7. The door leading to the library says its warded to summon a shinning child whenever touched without the password. If my group uses detect and then dispel magic on the door; what is the proper DC to dispel something like this on the door?
The text on page 226 AE gives a CL of 15 for the arcane lock.
But I think you mean the DC for dispelling the summoning effect, right?
The CRB gives a sample summon monster VI trap. As it is also given that the Shining Child stays for 20 rounds, I'd consider this a CL20 spell effect, setting the DC for [i]Dispel magic[i] to 31.
Ruyan.