Scarlett

Josie is a twelve year old girl who has moved house with her family. They inherited their grandmother's old mansion, with a huge garden and secrets behind every door.
Josie finds an abandoned house inside the garden, insisting she saw a shadow there. When she finds out it isn't abandoned, instead used for hiding from a kidnapper, she tries to help the people living inside of it. But they're on the run from the kidnapper for a reason: they're all guilty of something, and one of them is a murderer.

A betrayal hits Anna, a lie from Summer, and then the entire group handles Clockface: an untrustworthy danger sign, who could also be a possible ally. Clockface gives tips, but works with both the enemy and the friends.
Who do you think Clockface is?