Kat, not sure if she likes suspicious presences within her mind, tries to ask her binder companion if it knows what's going on.
~Hey Mr. Book... do you know I'd feel as if there was someone or something rooting around in my headspace? Can I get some plot exposition?~
~You can get all the plot exposition ya want, baby... within certain limits, y'know. I can tell ya that the thing you saw in yer headspace - that was somebody ya know. I think it was one of yer buddies. Side effect of magic, baby. One of many, actually. The mind ain't as private as ya might think anymore.~
Meanwhile, Halesey stands at the locked door, confident that what he seeks is behind it.
”Hmm, a locked door in this place? Pretty suspicious. If you haven't got a better idea Larry, I suggest we blast it down and get in there. I figure there's two ways - the potato way, and the musical garbage blast way. Or, you know, we could look for the keys. But that'll take time,” he tells his faithful companion.
"Go for it, man. If there's trouble, I can mucus or golem it," Larry replies, ever the champion of the cause of crushing lack of subtlety.
Halesey, having been thus validated, assumes a standard casting stance, readying himself to channel the raw power of musical garbage toward the door. Larry, for his part in things, carefully adjusts Halesey's posture, moving with him in a manner that would be perceived as vaguely homoerotic were it not for the direness of their need. Every few moments, Larry steps back, experimenting with a motion he judges to be appropriately blasty, then making sure Halesey repeats it to his specifications. Several rounds of such activities later, Larry would say that Halesey is ready. In fact, he's more than ready. Barring extremely bad luck, he would bet that the sheer moxie and chutzpah he has bestowed upon his woefully untalented yet supremely willing warlock-in-training would be enough to bring down a whole lot more than a mere door, at least until the dude forgets what he was doing and tries to summon a potato vortex instead.
All in all, Larry appears to have the makings of a true casting coach in him.