ssion. "Where's Newington--I never heerd tell of Blackman
Street. Air ye thinkin' of Boston, or----"

Phoebe interrupted her by leaping to her feet and starting back to the
opening in the wall.

"Come back, Rebecca!" she exclaimed. "Come back quick!"

Rebecca followed her sister in some alarm. Phoebe must have been taken
suddenly ill, she thought. Perhaps they had reached one of those regions
infected by fevers of which she had heard from time to time.

In silence the two women hurried back to the Panchronicon, whose uncouth
form was now quite plainly visible behind the trees into the midst of
which it had fallen when the power stored within it was exhausted.

Not until they were safely seated in Rebecca's room did Phoebe speak
again.

"There!" she exclaimed, as she dropped to a seat on the edge of the bed,
"I declare to goodness, Rebecca, I don't know what to make of it!"

"What is it? What ails ye?" said Rebecca, anxiously.

"Why, I don't believe I'm myself, Rebecca. I've been here before. I know
that village out there, and--and--it's all I can do to talk same's I've
always been used to. I'm wanting to talk like--like I did awhile back."

"It's all right! It's all right!" said Rebecca, soothingly. "Th' ain't
nothing the matter with you, deary. Ye've ben shet up here with side
weight an' what not so long--o' course you're not yerself."

She bustled about pretending to set things to rights, but her heart was
heavy with apprehension. She thought that Phoebe was in the first
stages of delirium.

"Not myself! No," said Phoebe. "No--the fact is, I'm somebody else!"

At this Rebecca straightened up and cast one horrified glance at her
sister. Then she turned and began to put on her bonnet and jacket. Her
mind was made up. Phoebe was delirious and they must seek a doctor--at
once.

"Get your things on, Phoebe," she said, striving to appear calm. "Put
on your things an' come out with me. Let's see if we can't take a little
exercise."

Phoebe arose obediently and went to her room. They were neither of
them very long about their preparations, and by the time the sun was
actually rising, the two women were leaving the air-ship for the second
time, Phoebe carrying the precious carved box and Rebecca her satchel
and umbrella.

"What you bringin' that everlastin' packet o' letters for?" Rebecca
asked, as they reached the opening in the wall.

"I want to have it out in the light," Phoebe replied. "I want to see
so