f that delicate greenery they felt drawn together by
frank affection--the affection of brother and sister, so it seemed to
them. It made Marie very happy to think that she had taken an interest in
Pierre, and that his return to health was largely her own work. However,
their eyes never fell, their hands never met, even as they sat there
toying with the grass, for they were as pure, as unconscious of all evil,
as were the lofty oaks around them.

At last Marie noticed that time was flying. "You know that they expect us
back to lunch," she exclaimed. "We ought to be off."

Thereupon they rose, wheeled their bicycles back to the highway, and
starting off again at a good pace passed the Loges and reached
Saint-Germain by the fine avenue which conducts to the chateau. It
charmed them to take their course again side by side, like birds of equal
flight. Their little bells jingled, their chains rustled lightly, and a
fresh breeze swept past them as they resumed their talk, quite at ease,
and so linked together by friendship that they seemed far removed from
all the rest of the world.

They took the train from Saint-Germain to Paris, and on the journey
Pierre suddenly noticed that Marie's cheeks were purpling. There were two
ladies with them in the compartment.

"Ah!" said he, "so you feel warm in your turn now?"

But she protested the contrary, her face glowing more and more brightly
as she spoke, as if some sudden feeling of shame quite upset her. "No,
I'm not warm," said she; "just feel my hands.... But how ridiculous it
is to blush like this without any reason for it!"

He understood her. This was one of those involuntary blushing fits which
so distressed her, and which, as Mere-Grand had remarked, brought her
heart to her very cheeks. There was no cause for it, as she herself said.
After slumbering in all innocence in the solitude of the forest her heart
had begun to beat, despite herself.

Meantime, over yonder at Montmartre, Guillaume had spent his morning in
preparing some of that mysterious powder, the cartridges of which he
concealed upstairs in Mere-Grand's bedroom. Great danger attended this
manufacture. The slightest forgetfulness while he was manipulating the
ingredients, any delay, too, in turning off a tap, might lead to a
terrible explosion, which would annihilate the building and all who might
be in it. For this reason he preferred to work when he was alone, so that
on the one hand there might be no dang