Henri could barely peek above the rim of the ledge from his current position.

He could see Delving and his men taking shelter inside the glowing dome-like barrier he was projecting from his sword. He was using some kind of gaudy looking claymore. The men under his wing were all wearing metal breastplates, but inside the barrier, they were beyond his reach. One of them appeared to be having a hard time breathing, and another was leveling his musket to fire at the group cross the waterway.

If the swing with the hook earlier had been indication, the barrier is what had arrested his prior attempt to smack Delving in the back of his damn head. Cowardly prig was cowering behind that glowing curtain like a smug little bastard.  Well, There was more than one way to deal with somebody like him--- Like trapping him over here, and forcing his pansy ass to get his hands dirty himself to get loose.  And he knew JUST the way to make him do it.

Timidly and very slowly, he rose from the water enough to hang over the side of the canal ledge, first the left side, to get access to the iron covering his hip and torso on that side. The heating would make a bright light, and that is unfortunate, but it may also distract Delving's goons for a moment.  The heat conduction through his body would begin to boil the water still surrounding his right arm and right leg, still submerged where he was clinging to the side of the canal. This was risky shit, but it was necessary.

Work was slow and difficult, due to trying to equalize the draw of material from that side of his body to avoid having a total and complete hole in the reinforcement, and due to the heat losses from partial submersion, but he commenced work on construction of a melon or large pumpkin sized "sphereoid", with a complex dimpled and form-stiffened surface from the sacrificed metal.