Thunder crackled above them. Keira looked up in time to see the last stars vanish behind walls of gathering clouds. She drew a sharp breath as she realised what the spirits were doing. They drew energy from their environments. It was a slow process; the weaker spirits, like the hollow-faced man, would need days or weeks to gather enough to appear, even briefly. But now they were giving back, releasing the energy they’d stored while in hiding. Sending it into the air to condense into rain clouds. Keira let her eyes fall closed as the first heavy drop hit her flushed skin. More came quickly. It
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