"It can transform things into other things."

"Like what?  ... Should I not be asking?"

"It's very flexible and can make any real thing a ritualist understands sufficiently." 

"'Real?'"

"You can't use it to make unreal - also called magical - artifacts."

"Oh, I see..."  He spends a minute blinking back and forth to compare his color vision between eyes.

Lucien isn't aware of this because he's looking anywhere besides Beau's eyes, face, body, or general vicinity.

"Is your cabin in the blood direction or away from it?"

"Away from it."

"Then I think I might be able to move there.  ...With help.  Sorry."

"You don't have to be sorry." Lucien can help Beau up in a totally normal way, with very deliberate movements that don't betray anything that's going on inside his head.

...Okay, even if this person is magically angry, or in pain or something, clearly he doesn't want to tell Beau about that.  And seems to want to act like it's not true.

The pair of them can stagger to Lucien's cabin.  Beau isn't that heavy for his height but that's not saying much; he is of course more helpful at locomoting himself than when he was dead, but it's still slow going.  It takes them about twenty minutes to make the five-minute journey, and he asks to sit down for breaks twice.

When Beau asks for a second break Lucien helps him sit down, breathes deeply, and bites his own lip hard enough that he really feels like it should be bleeding.

"...Are you okay?"

"Mm."

...Okay.  Beau will just sit here and try to become capable of walking faster.

And then he's ready and they can finish the rest of the trip.

"Are you capable of. This?" Lucien asks, when they come upon a, by his standards, fairly climbable cliff.

"Uh!  I don't think so."

Lucien... can trace a sigil in the air for a moment, and then look at Beau....

"I will carry you." he says, debating how to make a motion to do this without being weird.

"Okay."

Continuing to attempt to hold Beau isn't actually helping to find a more appropriate option, so Lucien is just going to settle for scoop Beau up and holding him close to his chest and above Lucien's waistline.

He tries to hold still.

It is slightly implausible that Lucien would be able to hold Beau and climb the cliff face at the same time, but apparently that doesn't matter for Lucien.

That sure is implausible but not really the most implausible thing that's happened in the past hour.  He does his best to distribute his weight helpfully.  Within the bounds of holding still.