16.  Feeding the turtle some grubs it spins, showing it's gratitude. The pixie turns back into human form and pets it.  The city is still far away.

17.  As you and your friends move forward, huge rose bushes grow, shooting thorns, blocking your path.  Use the pixie or the turtle to traverse?

18.  The turtle seems more apt to help with thorns.  Feeding it grubs it enlarges, encapsulating you both in its shell, allowing movement through the thorns.