To Turi and Lehasti, this looks like nothing more threatening than a pile of old bones haphazardly arranged, the only odd feature being the crocodile skull atop the stack of humanoid remains. Vershab's mind, however, remembers that schools of magic other than necromancy can also find uses for dead bodies... This is not an undead, but a golem, made of bones. It radiates strong magic, but the bones remain inert on the floor, even when the young mage comes up to examine them closely.
Spoiler
Vershab knows that this is a bone golem, a construct that is impervious to most magic. Healing magic has the effect of making it slow momentarily.