 Walls took a lease of the Aldwych Theatre, where he and Henson presented another farce, "It Pays to Advertise", which ran for nearly 600 performances.To replace the piece, Walls acquired the rights to another farce, "A Cuckoo in the Nest" by Ben Travers.Walls and Lynn co-starred in the Aldwych productions, and Travers was careful to maintain the equilibrium of their stage partnership by ensuring that each had as many funny lines as the other.