Facts:

The plaintiff/appellant as the owner of the two detached duplex houses located at plot 2623, Katsina Ala Crescent, Maitama District, Zone A6, Abuja entered into a tenancy agreement with the 1st defendant/respondent in October 2000 in respect of the said two duplex houses at N2.1 million per duplex per annum for 2 years. The 1st respondent took possession of the building and put the 2nd respondent, one of its employees, in occupation of one of the duplex houses. While the 2nd respondent was in occupation, the house was gutted by fire and the appellant was so informed. The defendant\respondents thereafter compiled a report on the cause of the fire incident and after series of meetings between the parties, the defendant\respondents informed the plaintiff\appellant that she would have to bear the loss as the cause of the fire was not known.