Mysterious mishaps

Ava and her friends have been practising magic so that they're ready to protect the powerful curios left by her great aunt. But when her mum's friend Jo comes over to take a picture of them, Ava is nervous. The artefacts can be unpredictable! Then the town is met with a sudden stream of accidents, including a tree collapsing, burst water mains leading to roads being blocked off, and falling set pieces from the local theatre almost injuring the staff. Ava suspects that the curios have something to do with it, but can she, Sarah, Lily and Pepper the puppy find out what is causing the town's sudden spate of bad luck?