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The Intermittently Connected Mobile Networks (ICMN) is a disconnected mobile network where a complete connectivity never exists. The intermittent connectivity is due to the dense nature of the network. The dense nature is mainly due to the high mobility of the nodes in the network. Routing in such a sparse network is arduous. Due to the disconnected attribute of the network, the encounter of the suspicious nodes in the network also remains a tedious task. In this paper, we put forward a secure routing that aids in detecting and preventing intrusion of malicious nodes. The routing process is made adorable through Spray and Wait (SNW). Since ICMN is prompt to higher delays certain authentication series are used to enable secure communication within the network. The amalgamation of SNW with authentication series leads a novel routing protocol named S-Spray (Secured-Spray) which is highly secure.