"And God go with you," smiled the girl.

When I knocked at the door of the broad room above little Max Fortin opened it. Dust covered his spectacles and nose; his hat, with the tiny velvet ribbons fluttering, was all awry.

"Come in, Monsieur Darrel," he said; "the mayor and I are packing up the effects of the Purple Emperor and of the poor Red Admiral."

"The collections?" I asked, entering the room. "You must be very careful in packing those butterfly cases; the slightest jar might break wings and antennæ, you know."

Le Bihan shook hands with me and pointed to the great pile of boxes.

"They're all cork lined," he said, "but Fortin and I are putting felt around each box. The Entomological Society of Paris pays the freight."

The combined collections of the Red Admiral and the Purple Emperor made a magnificent display.

I lifted and inspected case after case set with gorgeous butterflies and moths, each specimen carefully labelled with the name in Latin. There were cases filled with crimson tiger moths all aflame with colour; cases devoted to the common yellow butterflies; symphonies in orange and pale yellow; cases of soft gray and dun-coloured sphinx moths; and cases of garish nettle-bred butterflies of the numerous family of Vanessa.

All alone in a great case by itself was pinned the purple emperor, the Apatura Iris, that fatal specimen that had given the Purple Emperor his name and quietus.

I remembered the butterfly, and stood looking at it with bent eyebrows.