"If you were using your own energy to power it, then simply pressing your finger to the contact point should be all it needs to recharge. As for your other question, glyphs and runes -- the runes Reynir is utilizing, at least -- seem like they are capable of similar effects, though their construction is apparently entirely different. Think of if one was building a, ah..."

He catches sight of Pratt's expression, and though his wince was internal, Carlisle senses it all the same, and decides to spare Pratt some suffering. "Actually, let me save that explanation for another day. It is terribly long. Likely boring."

He grabs the stack of papers from the desk, setting one beneath each mug before fishing a spoon out of the drawer. He scoops a varying amount of sap into each: one barely gets half a spoonful, the second gets a full spoon, and the third gets two heaping spoonfuls of the goop.