Quick answer
Find and mail the locations of 30 dinosaur bones for Deborah MacGuiness. Some bones are in New Austin, which Story Mode normally opens later; plan the hunt across chapters.
Start the quest and track 30
- Find Deborah MacGuiness near Flatneck Station in the Heartlands to begin A Test of Faith.
- Inspect each bone to record its location, then mail discoveries at a post office.
- Use a collectible map filtered only to Dinosaur Bones and tick off each of 30 markers.
Region sweep
| Region | Plan |
|---|---|
| Heartlands / Cumberland | Clear accessible early bones while near Valentine. |
| Grizzlies / Roanoke / Lemoyne | Group mountainous and eastern sites by travel route. |
| West Elizabeth | Clear western accessible sites. |
| New Austin | Reserve for late Story Mode access. |
Rewards
Mail the bone locations to progress Deborah’s quest. Follow the post-office invitations and final quest stage for its rewards; do not expect a payout after only one inspection.
Sources and review
Reviewed 12 October 2026. Primary reference. Confirm live codes, prices, patch notes and account rules before publication.