In the title mol-ecule, C(24)H(17)N(3), the didhedral angles formed by the mean planes of the indole ring systems and the benzene ring are 86.44 (7) and 86.96 (7)°. The dihedral angle between the two indole ring systems is 72.08 (6)°. In the crystal, inter-molecular bifurcated (N-H)(2)⋯N hydrogen bonds link mol-ecules into sheets lying parallel to (010).