  We show that the d'Alembertian operator with a possible mass term in the AdS
soliton and more general confining gravity dual backrounds admits infinitely
many different spectra. These can be interpreted as different theories in the
infrared and correspond to multitrace deformations of either the Dirichlet or
the Neumann theory. We prove that all these fluctuations are normalizable and
provide examples of their spectra. Therefore, the AdS soliton can be
interpreted as giving a holographic RG flow between an universal UV theory at
the AdS boundary and these infinitely many possibilities in the IR, obtained by
deformations. The massive spectrum of the double trace deformation in $AdS_5$
allows the matching of the large-$N$ glueball masses of lattice $QCD_3$; the
ratio of the ground states of the $2^{++}$ and $0^{++}$ channels are in full
agreement with the lattice prediction. When considering $AdS_7$ and the
4-dimensional pure glue theory, a remarkably general picture emerges, where we
can write formulas for the fluctuations that are in agreement with ones from
holographic high-energy scattering and from AdS/CFT with IR and UV cut-off. We
point out that this log branch in the IR in $D$-dimensions can be seen as the
usual logarithmic branch of scalar fields saturating the Breitenlohner-Freedman
bound in a conformally rescaled metric, with $AdS_{D-1}\times S^1$ asymptotics.
