The English boys, among themselves, sometimes spoke of him as "skinny," a word considered specially appropriate to Frenchmen; but though he lacked their roundness and fulness of limb, and had not an ounce of superfluous flesh about him, he was all sinew and wire; and while in sheer strength he was fully their equal, he was incomparably quicker and more active.
Although in figure and carriage he took after his mother's countrymen, his features and expression were wholly English.

His hair was light brown, his eyes a bluish gray, his complexion fair, and his mouth and eyes alive with fun and merriment.

This, however, seldom found vent in laughter.

His intercourse with the grave Huguenots, saddened by their exile, and quiet and restrained in manner, taught him to repress mirth, which would have appeared to them unseemly; and to remain a grave and silent listener to their talk of their unhappy country, and their discussions on religious matters.
To his schoolfellows he was somewhat of an enigma.

There was no more good-tempered young fellow in the school, no one more ready to do a kindness; but they did not understand why, when he was pleased, he smiled while others roared with laughter; why when, in their sports, he exerted himself to the utmost, he did so silently while others shouted; why his words were always few and, when he differed from others, he expressed himself with a courtesy that puzzled them; why he never wrangled nor quarrelled; and why any trick played upon an old woman, or a defenceless person, roused him to fury.
As a rule, when boys do not quite understand one of their number they dislike him.