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In wireless sensor networks (WSNs), multi-path routing can find multiple paths from source node to sink node for achieving high reliability and high energy-efficiency. However, the existing multi-path routing protocols in the literature construct multiple paths with long latency and high overhead [C. Intanagonwiwat et al., 2000] [D. Ganesan et al.] [B. Deb et al., 2003]. In this paper, a novel multi-path routing protocol in WSNs is proposed, which can discover multiple paths with short latency and low overhead. Performance analyses and simulation results show that our proposed protocol has much better performance than the existing ones in terms of both latency and overhead.