All right, Keltham is going to wait for wizardry lessons, and then... hm.  "Is there a spell structure for a more powerful version of Detect Magic that you can show me?"  Keltham isn't all that happy about revealing that he got that second-circle that looks like it might be a more powerful Detect Magic - more out of security principle than any specific suspicions or plans - but he's not going to cast an unidentified spell, and using the more powerful Detect Magic might save him some time.

All right, Keltham is going to wait for wizardry lessons, and then... hm.  "Is there a spell structure for a more powerful version of Detect Magic that you can show me?"  Keltham isn't all that happy about revealing that he got that second-circle that looks like it might be a more powerful Detect Magic - more out of security principle than any specific suspicions or plans - but he's not going to cast an unidentified spell just yet; and using the more powerful Detect Magic might save him some time, so it is important to identify.