  In the QCD sum rule approach we predict the $\Lambda$ (1405) mass by choosing
the $\pi^0\Sigma^0$ multiquark interpolating field. It is found that the mass
is about 1.419 GeV from $\Pi_1 (q^2)$ sum rule which is more reliable than
$\Pi_q (q^2)$ sum rule, where $\Pi_q (q^2)$ and $\Pi_1 (q^2)$ are two invariant
functions of the correlator $\Pi (q^2)$. We also present the sum rules for the
$K^+ p$ and the $\pi^+\Sigma^+$ multiquark states, and compare to those for the
$\pi^0\Sigma^0$ multiquark state. The mass of the $\Lambda$ (1600) can be also
reproduced in our approach.
