After 7... Ng4 8.e6! f6 (8...Bxe6, 8...fe)9.O-O (9.Bf4) 9...Nge5 10.Nxe5 11.Bd5 FIG. 9 (9.Qh5)11...Qa5 12.a3 a6 13.Be3 Rb8 14.f4 White is for choice.