's tightly-buttoned coat and tore it loose, groped
inside and drew out a package.

"I've got it," he announced. "No!--he ripped off the end of the
parcel--here's a haul."

Bart writhed, choked on the loose strangling filaments of cotton, but
could not utter a word.

"Give me that package!" cried the colonel. "Stop! where are you going?"

Lem Wacker had bolted. The colonel stared in marveling astonishment as
his cohort sprang through the open doorway. Bart had managed to wad the
cotton in his mouth into a compact wet mass, enabling him to speak.

"Colonel Harrington!" he cried, "that man has not got the package you
were after. He has instead stolen a money envelope for Martin & Company
containing fifteen thousand dollars in currency, and is making off with
it. Cut this rope instantly that I may pursue him, or I give you my word
that, as a partner in his crime, rich as you are, and influential as you
are, you shall go to the State penitentiary."

CHAPTER XXVIII

THIRTY SECONDS OF TWELVE

It was an exciting moment. Bart was intently worked up, but he kept his
head level. Everything hung on the action of the next two minutes.

Whatever price the rich Colonel Harrington was paying Lem Wacker for his
cooeperation, it was not enough to blind that individual to a realization
of the fact that accident had placed in Wacker's grasp the great haul of
his life, and he was making off with this fortune, leaving the colonel
in the lurch.

The latter stood shaking like an aspen, his face the color of chalk.
Apparently he took in and believed every word that Bart had spoken.

"I'm in a fix--a terrible fix!" he groaned. "This is
dreadful--dreadful!"

"Mend it, then!" cried Bart. "Quick! if you have one spark of sense or
manhood in you. There's a knife--cut this rope."

With quivering fingers Colonel Harrington took up from the desk the
office knife used for cutting string. It was keen-bladed as a razor.
Unsteady and bungling as was his stroke, he severed the rope partly, and
Bart burst his bonds free.

"Stay here," called out the young express agent sharply. "I hold you
responsible for this office till I return!"

He dashed outside like a rocket, scanned the whole roadway expanse, and
darted for the freight yards with the speed of the wind.

The electric arc lights were sparsely scattered, but there was
sufficient illumination for him to make out a fugitive figure just
crossing the broad roadway towards the fre