Asked if she believes the rumours that the girls may have crossed the border into Cameroon and been forced to marry their abductors, she shakes her head vehemently.
Other reports suggest at least two have died from snakebites, some have been forced to marry their abductors and others have been taken across the border into Cameroon.
Zanna said he wanted to continue following the abductors' tracks, "But they told us told us, 'don't follow them.
She was also made to lure soldiers into positions where they could be targeted, and watch as her Boko Haram abductors attacked them.
And some of their abductors may have been over-zealous, rather than corrupt, cops.
On the other hand, if Mr de la Cruz's abductors believe, even incorrectly, that they have succeeded in forcing the Philippines' hand, the citizens of all the other countries that have contributed troops to the multinational force in Iraq are even more at risk.
Victims' families often negotiate directly with the abductors, says Javier Gorriño, a Venezuelan criminologist and former policeman.
The mission was due to end on August 20th, although the government had said it was prepared to maintain a military presence in Iraq after that date, if under the auspices of the UN.Following attempted negotiations with Mr de la Cruz's abductors, Filipino authorities announced this week that, in response to their demand, its contingent would be withdrawn as soon as possible.
Meanwhile, the UN's children's fund, Unicef, frets that efforts to demobilise child soldiers often miss abused girls under pressure to stay with their abductors.
IN THE sinister world of William Trevor's last two novels, "Felicia's Journey" and "Death in Summer", child abductors and murderers lurked below the glassy surface of his prose.
According to Reunite, a charity that works to put parents in touch with their children when a father or mother has taken them abroad and defied court rulings, Pakistan is the most popular destination for abductors.
