About a dozen poets, novelists and other people of the pen — the Nu Griots — trekked into the woods of Northern Minnesota last summer for what they called a Black Writers Collaborative Retreat, sponsored by the Givens Foundation for African American Literature. Those writers have since given two public readings of the works produced from this retreat — both evenings covered by 3-Minute Egg. Here’s a peek into the latest, at Penumbra Theatre in St. Paul.