Steal her notebook.

With a great deal of concentration and a smokey mystical purple zap of your newfound powers, you teleport the leatherbound drawing pad she clutched so tightly to her chest into the cabins below. Shallan glances down at her arms which are now clutching the air, and lays them beside her. Looking around worriedly, she mutters: 'Hmm... Excuse me captain Tozbek, but it seems I've lost my sketchbook somewhere in the hold of the ship, and I must retrieve it. The drawings within are precious to me.' Steadying herself with the railing, Shallan pushes herself onto the deck and almost runs down the stairs into her cabin, alone. The perfect opportunity for your next strike.