  We study the generalization of the gadenken experiment of overcharging an
extremal black hole proposed by Wald in the context of a multi black hole
solution. In particular, we attempt to overcharge a system of two extremal
black holes via test particle absorption to produce a system involving a black
hole and a naked singularity. If such a process is possible, then this would be
a potential violation of the cosmic censorship hypothesis. However, we find
that, analogous to Wald's result for a single charged black hole, such a test
particle which can expose the singularity, would not be able to enter the
horizon. This provides an interesting and non-trivial example that supports the
validity of the cosmic censorship hypothesis in four-dimensional general
relativity.
