How to load all levels using Entity Framework Core

My domain model is:

Book

public class Book
{
    public int Id { get; set; }
    public string Name { get; set; }
    public int ReleaseYear { get; set; }

    public virtual ICollection<Store> Stores { get; set; }
}

Store

public class Store
{
    public int Id { get; set; }
    public string Name { get; set; }
    public int BookId { get; set; }

    public virtual Book Book { get; set; }
    public virtual ICollection<StoreLocation> Locations { get; set; }
}

StoreLocation

public class StoreLocation
{
    public int Id { get; set; }
    public string Address { get; set; }
    public int StoreId { get; set; }

    public virtual Store Store { get; set; }
}

How can include all the levels (and sublevels) of a Book?

public Book GetBookById(int Id)
{
    return this._DbContext.Books
        .Include(p => p.Stores)
        .FirstOrDefault(p => p.Id == Id);
}

What i tried?

• .ThenInclude(p => p.StoreLocation) doesn't work.