By this time "Adventure Galley" was in need of fresh sail and rigging. The fact that the ship's existing supplies had barely lasted eight months suggests that the dockyard may have installed substandard equipment. After staying a month in Tuléar, "Adventure Galley" sailed on to Johanna (now Anjouan) in the Comoros on 18 March, where East India Company ships often refitted. However, Kidd was unable to obtain credit from local merchants to buy new rigging or sails, and chose instead to take "Adventure Galley" to another island – either Mayotte or Mohéli – for careening, to clean her hull of encrusted barnacles and weeds. This was accomplished successfully over the course of a month but up to a third of her crew died in an outbreak of an epidemic disease, possibly malaria or yellow fever. Kidd sailed back to Johanna to find replacement crewmen and this time was able to raise the credit for new sails and rigging.