For interactive scenery in Runespan, see Rock fragment (Runespan) . The Rock fragment was one of the rewards given by Avalani for completing Cryptic Clue Fest III, and Cryptic Clue Fest IV, along with Avalani's hat, Avalani's robe top, and Avalani's robe bottoms.It has only one function, Chicken; this causes a chicken to fall from the sky.or interactive scenery in Runespan, see Rock fragment (Runespan) . The Rock fragment was one of the rewards given by Avalani for completing Cryptic Clue Fest III, and Cryptic Clue Fest IV, along with Avalani's hat, Avalani's robe top, and Avalani's robe bottoms.