The view from the terrace at Saint-Germain-en-Laye is immense and famous. Paris lies spread before you in dusky vastness, domed and fortified, glittering here and there through her light vapours and girdled with her silver Seine. Behind you is a park of stately symmetry, and behind that a forest where you may lounge through turfy avenues and light-chequered glades and quite forget that you are within half an hour of the boulevards. One afternoon, however, in mid-spring, some five years ago, a young man seated on the terrace had preferred to keep this in mind.