Winterblaze by Kristen Callihan
Struggling with disillusionment and anger, as well as recuperating from his injuries, Winston Lane is desperate to put as much distance between him and his estranged wife as possible. Bound for Egypt, all Winston wants is to mend his broken heart and start a new life - without paranormals. Poppy is heartbroken without Winston but she must put her emotions aside and attend to her duties as the head of the SOS (Society for the Suppression of Supernaturals) but a massive demon orchestrated disaster causes Mount Krakatoa in Egypt to erupt, she has no choice but to go to Egpyt and hunt down the demon before he destroys everything she loves in the world. The last person Poppy expects to see on the steamer is Winston - and he's in grave danger. Poppy must now save both her husband and her marriage while Winston must learn how to be the detective he's meant to be on a supernatural playing field and win back the love of the woman who holds his heart - his wife.