Katherine Collette is a writer and environmental engineer. She lives in Melbourne with her husband and two children. The Helpline is her first novel.

Martine Murray was born in Melbourne and now lives in Castlemaine in Victoria. She is an award-winning children’s novelist and illustrator. The Last Summer of Ada Bloom is her first novel for adults.

Krissy Kneen is the award-winning author of memoir—Affection—and fiction: An Uncertain Grace, Steeplechase, Triptych, The Adventures of Holly White and the Incredible Sex Machine, as well as the Thomas Shapcott Award-winning poetrycollection Eating My Grandmother. She has written and directed broadcast documentaries for SBS and ABC Television.