Previously published in the print anthologies The Regatta Mystery and Other Stories and Problem at Pollensa Bay and Other Stories. Parker Pyne is on holiday at the Hotel Pino D’Oro on the island of Mallorca. Unfortunately also staying at the hotel are two fellow British guests, Mrs. Adela Chester and her dutiful young son, Basil. When Mrs. Chester discovers that Pyne is a “wizard” at solving human problems, she calls on him to save Basil from a most unsuitable marriage. ‘Problem at Pollensa Bay’ was first published in Strand Magazine, November 1935, and then in the USA as ‘Siren Business’ in Liberty, 5 September 1936.