King Mongkut and Queen Debsirindra —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=5765348

King Mongkut of Siam, Rama IV —
Photo Credit: by John Thomson - Public Domain, https://commons.wikimedia.org/w/index.php?curid=44996244

Memorial to Agatha Christie in central London —
Photo Credit: By Diagram Lajard - Public Domain, https://commons.wikimedia.org/w/index.php?curid=72095714

Agatha Christie and Max Mallowan — at their Winterbrook House, 1950
Photo Credit: By Unknown - National Portrait Gallery, London, Public Domain, https://commons.wikimedia.org/w/index.php?curid=98791450

University of London, Somerset House in 1836 — The university had its offices here from 1837 to 1870.
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=551457

University of London coat of arms —
Photo Credit: By https://london.ac.uk/sites/default/files/leaflets/rebrand-leaflet-2018.pdf, Fair use, https://en.wikipedia.org/w/index.php?curid=61065304

Max Mallowan — circa 1928
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=94646664

Agatha Christie with daughter, Rosalind — 1926
Photo Credit: The Christie Archive Trust, Public Domain, https://commons.wikimedia.org/w/index.php?curid=96726239

Rosalind Christie, 1926 —
Photo Credit: The Christie Archive Trust, Public Domain, https://commons.wikimedia.org/w/index.php?curid=96726239

Agatha Christie found — Daily Herald, 15 December 1926, announcing that Christie had been found—disappearing for 11 days, she was located at the Swan Hydropathic Hotel in Harrogate, Yorkshire
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=32591516

Advertisement placed by Christie for the sale of Styles in 1928 —
Photo Credit: The Times (London, England), Friday, Mar 02, 1928; pg. 28, Public Domain, https://commons.wikimedia.org/w/index.php?curid=32591624