Multiple muons in cosmic rays and the single source model of the knee

In previous work we have argued that the well known 'knee' in the cosmic ra y energy spectrum (at similar to 3 PeV) is anomalously sharp and cannot be due to the usually claimed Galactic modulation (GM) mechanism. Instead we c laim that it is due, largely, to particles from a single, local, recent sou rce (the single source model (SSM)). We have examined many aspects of cosmi c ray physics and found support for the model. Here, we examine results fro m the large underground detectors which have been operated over the last de cade or so-and which have given the multiplicity distribution of energetic muons(mainly in the TeV region). There should be a signal in the multiplici ty distribution which is conditioned by the primary mass composition and sp ectral shape. Our contention is that the multiple muon results are inconsistent with the GM mechanism but are, in fact, consistent with expectation from the SSM.