These books are published by Hachett Children's Books Australia (formerly Hodder)

This is a series  books about twins Meg and Mike Green, who help their parents run Animal Haven, a wildlife shelter. They have a brother Mike who is a little devil, and a best friend called Boris Boola, who is also an honourary Angel.

With permanent residents Alice the labrador, Carol the camel, Oscar the owl and Wannabee the dog as well as Cinnamon and Boss the koalas, Furbag the possum, Elsie the emu and Edna the echidna, the place is always busy. There are also injured or orphaned animals who need help. There are bird poachers, smugglers, shipwrecks, drug-dealers, disappearing planes and lots of mysteries for the Angels to solve.  There are now  21 Aussie Angel books. 

Okay Koala

Seal with a Kiss

Whale of a Time

Hello, Possum

Wannabe Wallaby

Cocky Two

Sheila the Heeler

Operation Wombat

A Horse of Course

Dollar for a Dolphin

Dog on the Job

Camel Breath

Mouse Pad

Duck for Luck

Owl Express

Pups 4 Sale

Kidding Around

Shark in the Dark

Llama Drama

Leap Frog

Penguin Parade