"I- I can't!" Fiona panted. "Oh shi- Tuck and roll!" She hopped she'd gotten the warning out fast enough, because a few short moments later her feet struck the ground- much harder than she would have liked- and her knees buckled, breaking her grip on her companion and sending her rolling across the ground.
She lay on her side, wings sore and aching, the wind knocked solidly out of her, for a long moment. When her breath began to return, she pushed herself up onto her elbows, groaning. "Jack? Jack, you alright?"