The family of a missing woman who police believe may have been murdered have appealed for information.
Joanna Brown, 46, who runs a bed and breakfast in Ascot, Berkshire, was reported missing on Monday morning.
Officers were given more time on Wednesday to question her husband Robert Brown on suspicion of murder after examining her guest house.
Mrs Brown's family said she is a "very special person, loved and admired by everyone who knows her".
In a statement the family added: "This is a very difficult time for our family.
"We ask that anyone with any information about the whereabouts of Joanna contact the police.
"Jo is a very special person, loved and admired by everyone who knows her, a wonderful and caring mother to her two children."
Thames Valley Police have been given until Friday morning to question her husband.
A family member raised the alarm on Monday after failing to contact Mrs Brown.
A search of the property, which borders Windsor Great Park, led police to believe Mrs Brown may have come to harm.
Officers later received more information and her husband was arrested at his home.
A search of the mock-Tudor guest house, described on its website as "a beautiful English country home", is continuing.