  We consider a warped brane world scenario with two branes, Gauss-Bonnet
gravity in the bulk, and brane localised curvature terms. When matter is
present on both branes, we investigate the linear equations of motion and
distinguish three regimes. At very high energy and for an observer on the
positive tension brane, gravity is four dimensional and coupled to the brane
bending mode in a Brans-Dicke fashion. The coupling to matter and brane bending
on the negative tension brane is exponentially suppressed. In an intermediate
regime, gravity appears to be five dimensional while the brane bending mode
remains four dimensional. At low energy, matter on both branes couple to
gravity for an observer on the positive tension brane, with a Brans-Dicke
description similar to the 2--brane Randall-Sundrum setup. We also consider the
zero mode truncation at low energy and show that the moduli approximation fails
to reproduce the low energy action.
