Jenny Johnson, a gentle girl with a great understanding of animals. works at Westchester Zoo, where she helps with any animal in need of special attention. One afternoon. Jenny takes a new arrival, a young llama, to the children’s corner at the zoo. 
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Young Sally Deacon, her friend, Joe Casey, and the other children in the flats, where they live, secretly keep their pets in the disused Harrington School, as animals are forbidden in the flats by Simon Oakes, the housing manager. Joe’s brother, Ken, is being forced by a man called Sam Rudd to help dig a tunnel beneath the school to rob the bank next door. Sally gets Ken safely out of the way by having her uncle take him on an expedition to search for her father, who is lost in a Brazilian jungle. However, Rudd then forces Joe to take Ken’s place.
Sally follows them to the school but is caught by Rudd, who sets a time bomb beneath the bank vaults. He leaves Sally in the cellar, intending to return after the explosion. The police warned by Ken before he left for Brazil, arrive in time to stop the explosion, but they realise that Rudd must have seen the police car at the school and has gone off, taking Joe with him.
Sally’s Secret Zoo – Judy: #275 (17 April 1965) – #286 (03 July 1965)
While on holiday in Africa, animal trainers Cyril and Mavis Tanner find an English girl living with chimps. Pretending she is their niece, Cherry, they bring her back to England to perform in their act – and to slave for them.
Cherry Brent is looking after her Uncle Fred’s two circus chimpanzees, Chico and Jacko. Her father keeps a riding school and a neighbour, Herbert Larter, has made himself very unpleasant, but now he is puzzling Cherry and her friend Sheila by being over friendly. While at Hexford visiting Uncle Fred in hospital, Cherry sees a friend of Larter’s, Mr Skinner, in the street and is surprised by his behaviour.
When Black’s Circus breaks up, the cruel Mr Haxby has his eye on buying Jumbo the elephant. Fortunately, he fails. The granddaughter, Jet Black, is now riding Jumbo all the way to a safari park in Cornwall. But Haxby is still determined to have Jumbo and is dogging them at every turn.
Cindy Stanton’s father is the Warden of Wycherly Wild Life Sanctuary, known locally as the Singing Forest. While he is laid up with an injury, Cindy is looking after the forest, protecting it from poachers, egg thieves and other enemies of wild life. She is opposed by Jugger, a rascally woodman who tries to make money from the Forest.
Cassie Adams has been brought up with the Beaver Indians on their reservation by Blue Water lake. She is sent to school on the other side of the lake, where she learns that her Indian friends have been turned off the reservation to make way for a tourist area. To help her friends win back their land, Cassie uses her uncanny power over beavers to lure the animals away from the old reservation and establish a new colony on an island near the school. Without the beavers to build their dams,the tourist area will quickly return to swampland. Norah Johnson is a spiteful girl who dislikes Cassie. Her father is chairman of the Tourist Board and, when he visits the school on Sports Day, Cassie accidentally overhears him outlining his plan to work the Indians in the mines as cheap labour.
Katie King is looking after a collection of animals, some of which belonged to an eccentric old neighbour, Mrs Wilson. Following the death of the old lady, a family, also named Wilson, move into her house, claiming to be her nearest relatives. Katie’s monkey, Coco, has hidden a will which Katie believes would prove that the Wilsons are not really the old lady’s heirs.
Katie returns in “Doctor Katie”. She is still an animal lover and is always ready to treat pets whose owners cannot afford the extravagant fees charged by Bernard Basket, the nasty vet.
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Animal lover Sally Kemp had started up her own agency – to supply animals for use in television and film work.
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Thirteen year old Sally Downes lived at Bridge House Children’s Home where she liked helping out with the younger children. When an injured dog wandered into the grounds, Sally took care of him, and he bacame a firm favourite with the children, who named him Doctor Fido.
A different version turns up in a Bunty Picture Story Library book. Nurse Jill Elliot gets a job at Endervale Children’s Home and brings her dog Fido, who she’s owned since he was a pup. The Matron isn’t too happy but the children beg her to let the dog stay and they nickname him Doctor Fido.
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