April 18th excerpt:

Later on, Bowman had to dodge a surprise projectile, a small ball of paper crumpled up and flicked at him by Dean, seeking a momentary reprieve from the constant tedium of research. Bowman, naturally, was easily riled up by this action and retaliated by retrieving the paper and lobbing it right back at the human, much to Jacob’s entertainment.

Sam rolled his eyes as Dean, a mischievous glint in his eyes, snatched the paper right out of the air, snapping it back at Bowman before the sprite had time to recover from his own throw. Bowman lucked out this time, the shot going wide and missing by a good few inches.