The Stranger in Room Six

Mabel has spent her life at Sunnyside—first as an evacuee during the
Blitz, and now as the home’s oldest resident. She’s held the secrets of
this house for as long as she can remember. Secrets that, in the wrong
hands, could kill.

But history won’t stay hidden forever, because someone is onto both
Belinda and Mabel, watching and listening from Room Six.

And they’ll stop at nothing to find out the truth.