Random Integers Appear When Deleting Element in Linked List

When I attempt to delete a certain element from a linked list, some of the elements end up somehow obtaining random values in place of their originals. I don't understand why this is happening. Can someone help me please? Here is my code:

void removeSpaceShipPower(SpaceShip *x, int y)
{
    SpaceShip *current = x;
    SpaceShip *toDelete = NULL;
    SpaceShip *next = NULL;
    while(current != NULL)
    {
        if(current->nextShip->power == y)
        {
            next = current->nextShip->nextShip;
            current->nextShip = next;
            toDelete = current->nextShip;
            free(toDelete);
            return;
        }
        current = current->nextShip;
    }
}

And then main:

int main()
{
    SpaceShip *freeList = new SpaceShip;
    freeList->power = 50;
    freeList->health = 100;
    SpaceShip *freeList2 = new SpaceShip;
    freeList2->power = 25;
    freeList2->health = 100;
    SpaceShip *freeList3 = new SpaceShip;
    freeList3->power = 75;
    freeList3->health = 100;
    SpaceShip *freeList4 = new SpaceShip;
    freeList4->power = 100;
    freeList4->health = 100;
    freeList->nextShip = freeList2;
    freeList2->nextShip = freeList3;
    freeList3->nextShip = freeList4;
    freeList4->nextShip = NULL;
    printSpaceShip(freeList);
    cout << getLowestPower(freeList) << endl;
    removeSpaceShipPower(freeList, 75);
    printSpaceShip(freeList);
}

And then the output is:

C:\Users\Russell\Desktop\C++ Programs>a
Spaceship #1 Power: 50 Health: 100
Spaceship #2 Power: 25 Health: 100
Spaceship #3 Power: 75 Health: 100
Spaceship #4 Power: 100 Health: 100
25
Spaceship #1 Power: 50 Health: 100
Spaceship #2 Power: 25 Health: 100
Spaceship #3 Power: 9310088 Health: 9306304