Books in the Alex Sparrow series

Catching the school's runaway guinea pigs is not giving Alex job satisfaction, but how can he find a bigger test for his and Jess's awkward superpowers? Then people report strange events: things missing, property destroyed, and the local squirrels have turned mean. The police have no suspects. It looks more and more like a job for Agent Alex...

The Zumbies are on the rampage - members of the Cherry Tree Lane zumba class are apparently dying and then mysteriously coming back to life!Alex, Jess and Dave have to put a stop to it before Alex's mum and nan join the living Zumba dead or there'll be no family Christmas.