Plot summary

An paleontology expedition in the West turns into a desperate attempt to capture freight train robbers and an escaped convict.

Original edition (1952)

• Ghostwriter: William Halstead, rewritten by William Dougherty
• Summary: In the West, the boys crack a gang of train robbers, nab an escaped convict, and recover a missing deed.

Revised edition (1969)

• Revision type: Minor revisions.
• Ghostwriter: Priscilla Baker-Carr