His nerves being soothed by the stillness, Popopo began to enjoy
himself. He entered many of the houses and examined their rooms with
much curiosity. Locks and bolts made no difference to a knook, and
he saw as well in darkness as in daylight.

After a time he strolled into the business portion of the city.
Stores are unknown among the immortals, who have no need of money or
of barter and exchange; so Popopo was greatly interested by the
novel sight of so many collections of goods and merchandise.

During his wanderings he entered a millinery shop, and was surprised
to see within a large glass case a great number of women's hats,
each bearing in one position or another a stuffed bird. Indeed, some
of the most elaborate hats had two or three birds upon them.

Now knooks are the especial guardians of birds, and love them
dearly. To see so many of his little friends shut up in a glass case
annoyed and grieved Popopo, who had no idea they had purposely been
placed upon the hats by the milliner. So he slid back one of the
doors of the case, gave the little chirruping whistle of the knooks
that all birds know well, and called:

"Come, friends; the door is open--fly out!"

Popopo did not know the birds were stuffed; but, stuffed or not,
every bird is bound to obey a knook's whistle and a knook's call. So
they left the hats, flew out of the case and began fluttering about
the room.

"Poor dears!" said the kind-hearted knook, "you long to be in the