[Jack Simth]

ooc:[I was just setting up the possibility; your character, your decision. No matter.]

Jack looks at the cave thoughtfully.

Jack "We could set up a probe ... let's see ... I need a spell detection stealth bubble to work in ..."

Jack sets up a spell detection supression bubble, and pulls a small wooden disk out of his robes.
Jack "Hmm, Last one; I'm going to need to find a decent carpenter soon. Ah well; they are for practicing enchantments, and that I have been doing. Anyway ... on the probe itself, I need a recall mechanism ... a scanning mechanism ... some spell detection stealth ... some psionic stealth ... and some memory ..."

Jack takes a moment to write several glowing runes on it.

Jack "There, that should do it. We'll know what's up in a minute."

Jack rolls the disk into the cave. A moment later, the disk rolls back out of its own accord. Jack picks it up, looks at it for a bit, and puts it in a pocket of his robe.

Jack "It took a quick look around from the inside, and came up with some interesting results. First off: John, that barrier is your spell. Nice work by the way, but I suspect you don't remember making it; there is a forced aspect to it, as though someone was searching memory for instructions rather than just doing it. As for what it does, it is a selectively permiable membrane. It traps any magic it finds on the way in and suppresses traces very effectively, but lets psionics and solid matter pass freely. I suspect it registers Arthur's detect life spell as psionics, but it takes a while to make that determination, hence the delay. The probe noticed several spells running on the inside, but didn't get enough of a look to tell what they do. We shouldn't have any trouble getting in."