  In the last decades, the Standard Model (SM) of particle physics has been
extensively tested and confirmed, with the announced discovery of the Higgs
boson in 2012 being the last missing puzzle piece. Even though since then the
search for new particles and interactions has been further intensified, the
experiments ATLAS and CMS at the Large Hadron Collider (LHC) at CERN did not
find evidence for the direct production of a new state. However, in recent
years deviations between LHC data and SM predictions in multiple observables
involving two or more leptons (electrons or muons) have emerged, the so-called
``multi-lepton anomalies'', pointing towards the existence of a beyond the SM
Higgs boson $S$. While from these measurements its mass cannot be exactly
determined, it is estimated to lay in the range between $130\,$GeV and
$160\,$GeV. Motivated by this observation, we perform a search for signatures
of $S$, by using existing CMS and ATLAS analyses. Combining channels involving
the associate productions of SM gauge bosons ($\gamma\gamma$ and $Z\gamma$), we
find that a simplified model with a new scalar with $m_S= 151.5\,$GeV is
preferred over the SM hypothesis by 4.3$\sigma$ (3.9$\sigma$) locally
(globally). On the face of it, this provides a good indication for the
existence of a new scalar resonance $S$ decaying into photons, in association
with missing energy and allows for a connection to the long-standing problem of
Dark Matter. Furthermore, because $S$ is always produced together with other
particles, we postulate the existence of a second new (heavier) Higgs boson $H$
that decays into $S$ and propose novel searches to discover this particle,
which can be performed by ATLAS and CMS.
