Harriet Monkhouse wrote:
It's possible that Mellanby had some contact with the Sarrans when he
arrived, and that relations broke down later. This could be any reason from "Mellanby is horrified to find that they kill unwanted baby girls, so rescues one and then withdraws into his ship" to "Mellanby kidnaps a baby girl to provide a companion for his daughter, and is forced to withdraw before the Sarrans can take revenge". Or something completely unrelated to baby girls.<
Like Dayna starting to use the Sarrans for target practising.
Marian