HERMAN'S Hermits have been booked for a two-week engagement at London's Talk Of The Town theatre-restaurant commencing Monday, September 22. In what is easily their most important British cabaret booking to date, they will follow two American attractions - Sammy Davis and Vic Damone - at this venue. Ross Taylor is devising and producing a completely new act for the group to feature during its London season. And disc producer Mickie Most plans to record the Hermits' act in full, for release as a live album.

Herman and the group are currently on holiday, but resume engagements with a one-nighter in Majorca this Sunday (31). They then return to London for extensive recording sessions, from which a new single will be selected for early October release.     Three major pantomime offers are at present being considered for the group. But if one is accepted, it will have to be for a releatively short season, as the Hermits will probably start their next tour of Canada and the United States in February. There are no plans for British concerts, but they will appear at London University's President's Ball on November 14.