To complete one of Mary Beth’s Errands in Red Dead Redemption 2 you must find the Fountain Pen Location. The guide below shows where to find the Fountain Pen in RDR2:
The Fountain Pen is located in Osman Grove, which is a hut just east (right) of Emerald Ranch.
In order to deliver it you need to get Mary Beth’s errand request first. She gives it to you at your gang’s hideout in Chapter 2 between 8:00 – 20:00 at day. Fulfilling 5 errands is a requirement for the Errand Boy trophy and achievement. This errand is missable, it’s only available in Chapter 2! Bring back the Fountain Pen to Mary-Beth at your camp to complete this Companion Request.
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